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interstellaradjectiveBetween or among stars.intermediate
The density of hydrogen in interplanetary and interstellar space.
ORIGIN SUMMARYSource-language links: Latin, Middle English, Old French, Vulgar Latin. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
intertribaladjectiveBetween or among tribes.advanced
Intertribal warfare.
ORIGIN SUMMARYSource-language links: Latin, Middle English, Old French, Vulgar Latin. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
intertwineverbSpin,wind, or twist together.intermediate
Intertwine the ribbons.
ORIGIN SUMMARYSource-language links: Latin, Middle English, Old English, Old French, Vulgar Latin. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
interveneverbGet involved, so as to alter or hinder an action, or through force or threat of force.intermediate
Why did the U.S. not intervene earlier in WW II?
ORIGIN SUMMARYSource-language links: Latin, Middle French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
interveningadjectiveOccurring or falling between events or points in time.advanced
So much had happened during the intervening years.
Definition and example: WordNet 3.0. Origin not available for this entry.
interventionnounThe act of intervening (as to mediate a dispute, etc.).intermediate
It occurs without human intervention.
ORIGIN SUMMARYSource-language links: Latin, Middle French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
intestinaladjectiveOf or relating to or inside the intestines.advanced
Intestinal disease.
ORIGIN SUMMARYSource-language links: Hindi, Latin. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
intifadanounAn uprising by Palestinian Arabs (in both the Gaza Strip and the West Bank) against Israel in the late 1980s and again in 2000.advanced
The first intifada ended when Israel granted limited autonomy to the Palestine National Authority in 1993.
ORIGIN SUMMARYSource-language links: Arabic.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
intimacynounClose or warm friendship.advanced
The absence of fences created a mysterious intimacy in which no one knew privacy.
ORIGIN SUMMARYSource-language links: Latin.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
intimateadjectiveMarked by close acquaintance, association, or familiarity.intermediate
Intimate relations between economics, politics, and legal principles.
ORIGIN SUMMARYSource-language links: Latin.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
intimatelyadverbIn a close manner.advanced
The two phenomena are intimately connected.
ORIGIN SUMMARYSource-language links: Latin.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
intolerableadjectiveIncapable of being put up with.intermediate
An intolerable degree of sentimentality.
ORIGIN SUMMARYSource-language links: French, Latin, Middle English, Middle French, Old English. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
intolerancenounImpatience with annoyances.advanced
His intolerance of interruptions.
ORIGIN SUMMARYSource-language links: French, Latin, Middle English, Old English. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
intonedadjectiveUttered in a monotonous cadence or rhythm as in chanting.intermediate
Their chantlike intoned prayers.
Definition and example: WordNet 3.0. Origin not available for this entry.
intoxicationnounExcitement and elation beyond the bounds of sobriety.advanced
The intoxication of wealth and power.
Definition and example: WordNet 3.0. Origin not available for this entry.
intracellularadjectiveLocated or occurring within a cell or cells.advanced
Intracellular fluid.
ORIGIN SUMMARYSource-language links: New Latin.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
intractableadjectiveNot tractable; difficult to manage or mold.intermediate
An intractable disposition.
ORIGIN SUMMARYSource-language links: Latin, Middle English, Old English. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
intramuraladjectiveCarried on within the bounds of an institution or community.advanced
Most of the students participated actively in the college's intramural sports program.
Definition and example: WordNet 3.0. Origin not available for this entry.
intransigentadjectiveImpervious to pleas, persuasion, requests, reason.advanced
An intransigent conservative opposed to every liberal tendency.
ORIGIN SUMMARYSource-language links: French, Latin, Old French, Spanish. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
intraspecificadjectiveArising or occurring within a species; involving the members of one species.advanced
Intraspecific competition.
ORIGIN SUMMARYSource-language links: Late Latin, Latin, Old French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
intrastateadjectiveRelating to or existing within the boundaries of a state.intermediate
Intrastate as well as interstate commerce.
ORIGIN SUMMARYSource-language links: Latin, Middle English, Old French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
intravenousadjectiveWithin or by means of a vein.advanced
Intravenous feeding.
ORIGIN SUMMARYSource-language links: Latin.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
intricateadjectiveHaving many complexly arranged elements; elaborate.intermediate
Intricate lacework.
Definition and example: WordNet 3.0. Origin not available for this entry.
intriguingadjectiveCapable of arousing interest or curiosity.advanced
Our team came up with some most intriguing finds.
Definition and example: WordNet 3.0. Origin not available for this entry.
intrinsicadjectiveBelonging to a thing by its very nature.intermediate
Form was treated as something intrinsic, as the very essence of the thing.
ORIGIN SUMMARYSource-language links: Latin.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
introduceverbCause to come to know personally.beginner
Introduce the new neighbors to the community.
ORIGIN SUMMARYSource-language links: Latin, Middle English, Old French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
introductoryadjectiveServing to open or begin.intermediate
Began the slide show with some introductory remarks.
ORIGIN SUMMARYSource-language links: Late Latin, Latin. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
intrudeverbThrust oneself in as if by force.intermediate
The colors don't intrude on the viewer.
Definition and example: WordNet 3.0. Origin not available for this entry.
intrusiveadjectiveTending to intrude (especially upon privacy).advanced
She felt her presence there was intrusive.
ORIGIN SUMMARYSource-language links: Latin, Medieval Latin, Middle English, Old French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
intuitionnounAn impression that something might be the case.advanced
He had an intuition that something had gone wrong.
ORIGIN SUMMARYSource-language links: Latin, Medieval Latin, Middle French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
intuitiveadjectiveSpontaneously derived from or prompted by a natural tendency.advanced
An intuitive revulsion.
ORIGIN SUMMARYSource-language links: Latin, Medieval Latin, Middle French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
inundatedadjectiveCovered with water.advanced
Inundated farmlands.
Definition and example: WordNet 3.0. Origin not available for this entry.
inuredadjectiveMade tough by habitual exposure.beginner
A peasant, dark, lean-faced, wind-inured.
Definition and example: WordNet 3.0. Origin not available for this entry.
invalidateverbTake away the legal force of or render ineffective.advanced
Invalidate a contract.
ORIGIN SUMMARYSource-language links: French, Latin, Middle English, Old English. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
invariableadjectiveNot liable to or capable of change.advanced
An invariable rule.
ORIGIN SUMMARYSource-language links: Latin, Middle English, Old English, Old French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
invariancenounThe nature of a quantity or property or function that remains unchanged when a given transformation is applied to it.advanced
The invariance of the configuration under translation.
ORIGIN SUMMARYSource-language links: Latin, Middle English, Old English, Old French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
invasionnounAny entry into an area not previously occupied.advanced
An invasion of locusts.
ORIGIN SUMMARYSource-language links: Late Latin, Middle French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
invasiveadjectiveMarked by a tendency to spread especially into healthy tissue.advanced
Invasive cancer cells.
ORIGIN SUMMARYSource-language links: Latin, Medieval Latin, Middle English, Middle French, Old French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
inventiveadjective(used of persons or artifacts) marked by independence and creativity in thought or action.advanced
Inventive ceramics.
ORIGIN SUMMARYSource-language links: Medieval Latin, Middle English, Old French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
inventorynounThe merchandise that a shop has on hand.intermediate
They carried a vast inventory of hardware.
ORIGIN SUMMARYSource-language links: Late Latin, Latin, Middle English, Old French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
inversenounSomething inverted in sequence or character or effect.intermediate
When the direct approach failed he tried the inverse.
Definition and example: WordNet 3.0. Origin not available for this entry.
invertverbReverse the position, order, relation, or condition of.beginner
When forming a question, invert the subject and the verb.
Definition and example: WordNet 3.0. Origin not available for this entry.
invertedadjectiveBeing in such a position that top and bottom are reversed.advanced
A quotation mark is sometimes called an inverted comma.
Definition and example: WordNet 3.0. Origin not available for this entry.
investigativeadjectiveDesigned to find information or ascertain facts.advanced
Investigative reporting.
ORIGIN SUMMARYSource-language links: Ancient Greek, Latin, Middle English, Old English, Old French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
investmentnounThe commitment of something other than money (time, energy, or effort) to a project with the expectation of some worthwhile result.intermediate
He made an emotional investment in the work.
ORIGIN SUMMARYSource-language links: Italian, Latin, Medieval Latin, Middle French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
invidiousadjectiveContaining or implying a slight or showing prejudice.advanced
Invidious comparisons.
ORIGIN SUMMARYSource-language links: Latin.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
invigoratingadjectiveImparting strength and vitality.advanced
The invigorating mountain air.
Definition and example: WordNet 3.0. Origin not available for this entry.
invincibleadjectiveIncapable of being overcome or subdued.advanced
An invincible army.
ORIGIN SUMMARYSource-language links: Latin, Middle French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
inviolableadjectiveIncapable of being transgressed or dishonored.advanced
An inviolable oath.
ORIGIN SUMMARYSource-language links: Latin, Middle French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
invisibleadjectiveImpossible or nearly impossible to see; imperceptible by the eye.intermediate
An invisible hinge.
ORIGIN SUMMARYSource-language links: Late Latin, Latin, Middle English, Old English, Old French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
invitationnounA request (spoken or written) to participate or be present or take part in something.intermediate
An invitation to lunch.
ORIGIN SUMMARYSource-language links: Latin, Middle French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
inviteverbRequest the participation or presence of.intermediate
The organizers invite submissions of papers for the conference.
ORIGIN SUMMARYSource-language links: Latin, Middle French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
involuntaryadjectiveNot subject to the control of the will.advanced
Involuntary servitude.
ORIGIN SUMMARYSource-language links: Late Latin, Latin, Middle English, Old English, Old French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
involveverbEngage as a participant.beginner
Don't involve me in your family affairs!
ORIGIN SUMMARYSource-language links: Latin.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
involvedadjectiveConnected by participation or association or use.beginner
The involved muscles.
ORIGIN SUMMARYSource-language links: Latin, Middle English, Old English. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
involvementnounA connection of inclusion or containment.advanced
He escaped involvement in the accident.
ORIGIN SUMMARYSource-language links: Latin.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
inwardadjectiveRelating to or existing in the mind or thoughts.intermediate
A concern with inward reflections.
ORIGIN SUMMARYSource-language links: Middle English, Old English. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
inwardlyadverbWith respect to private feelings.intermediate
Inwardly, she was raging.
ORIGIN SUMMARYSource-language links: Middle English, Old English. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
ionizationnounThe condition of being dissociated into ions (as by heat or radiation or chemical reaction or electrical discharge).advanced
The ionization of a gas.
ORIGIN SUMMARYSource-language links: Ancient Greek.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
irascibleadjectiveCharacterized by anger.advanced
An irascible response.
ORIGIN SUMMARYSource-language links: French, Late Latin. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
iridescentadjectiveShowing shifting rainbow-like colors as the light changes.advanced
The shell had an iridescent surface.
ORIGIN SUMMARYLatin elements, through English
Original teaching entry.
irksomeadjectiveSo lacking in interest as to cause mental weariness.intermediate
What an irksome task the writing of long letters is.
ORIGIN SUMMARYSource-language links: Middle English, Old English, Old Norse. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
ironadjectiveExtremely robust.beginner
An iron constitution.
ORIGIN SUMMARYSource-language links: Middle English, Old English. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
ironicadjectiveHumorously sarcastic or mocking.intermediate
An ironic remark often conveys an intended meaning obliquely.
ORIGIN SUMMARYSource-language links: Ancient Greek, Late Latin, Middle French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
ironicaladjectiveCharacterized by often poignant difference or incongruity between what is expected and what actually is.intermediate
It was ironical that the well-planned scheme failed so completely.
ORIGIN SUMMARYSource-language links: Ancient Greek, Hindi, Late Latin, Middle French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
ironicallyadverbIn an ironic manner.advanced
She began to mimic him ironically.
ORIGIN SUMMARYSource-language links: Ancient Greek, Anglo-Norman, Late Latin, Latin, Middle English, Middle French, Old French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
ironingnounGarments (clothes or linens) that are to be (or have been) ironed.intermediate
There was a basketful of ironing to do.
Definition and example: WordNet 3.0. Origin not available for this entry.
ironynounWitty language used to convey insults or scorn.intermediate
Irony is wasted on the stupid.
ORIGIN SUMMARYSource-language links: Ancient Greek, Latin, Middle English, Middle French, Old English. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
irrationaladjectiveNot consistent with or using reason.intermediate
Irrational animals.
ORIGIN SUMMARYSource-language links: Latin.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
irrationallyadverbIn an irrational manner.advanced
They acted irrationally.
ORIGIN SUMMARYSource-language links: Latin.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
irreconcilableadjectiveImpossible to reconcile.advanced
Irreconcilable differences.
ORIGIN SUMMARYSource-language links: Late Latin, Middle French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
irrefutableadjectiveImpossible to deny or disprove.advanced
An irrefutable argument.
ORIGIN SUMMARYSource-language links: Late Latin.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
irregularadjectiveContrary to rule or accepted order or general practice.intermediate
Irregular hiring practices.
ORIGIN SUMMARYSource-language links: Anglo-Norman, Late Latin, Latin, Middle English, Middle French, Old French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
irregularlyadverbIn an irregular manner.advanced
The patient is breathing irregularly.
ORIGIN SUMMARYSource-language links: Anglo-Norman, Late Latin, Latin, Middle English, Middle French, Old French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
irrelevantadjectiveHaving no bearing on or connection with the subject at issue.intermediate
An irrelevant comment.
ORIGIN SUMMARYSource-language links: Latin.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
irremediableadjectiveImpossible to remedy or correct or redress.advanced
An irremediable error.
ORIGIN SUMMARYSource-language links: Latin, Middle English, Old English, Old French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
irreparableadjectiveImpossible to repair, rectify, or amend.intermediate
Irreparable damages.
ORIGIN SUMMARYSource-language links: Latin, Middle French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
irreplaceableadjectiveImpossible to replace.advanced
Irreplaceable antiques.
ORIGIN SUMMARYSource-language links: Ancient Greek, Latin, Middle English, Old English, Old French, Old Norse, Old Northern French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
irrepressibleadjectiveImpossible to repress or control.advanced
An irrepressible chatterbox.
ORIGIN SUMMARYSource-language links: Latin, Medieval Latin, Middle English, Old English, Old French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
irresistibleadjectiveImpossible to resist; overpowering.advanced
Irresistible (or resistless) impulses.
ORIGIN SUMMARYSource-language links: Anglo-Norman, Latin, Middle English, Middle French, Old English, Old French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
irresponsibleadjectiveShowing lack of care for consequences.intermediate
Hasty and irresponsible action.
ORIGIN SUMMARYSource-language links: Latin, Middle French, Old French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
irreverentadjectiveShowing lack of due respect or veneration.advanced
Noisy irreverent tourists.
ORIGIN SUMMARYSource-language links: Latin, Middle French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
irreversibleadjectiveIncapable of being reversed.advanced
Irreversible momentum toward revolution.
ORIGIN SUMMARYSource-language links: French, Latin, Middle English, Old English. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
irrevocableadjectiveIncapable of being retracted or revoked.advanced
Firm and irrevocable is my doom.
ORIGIN SUMMARYSource-language links: Latin, Middle English, Middle French, Old French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
irrigateverbSupply with a constant flow or sprinkling of some liquid, for the purpose of cooling, cleansing, or disinfecting.advanced
Irrigate the wound.
ORIGIN SUMMARYSource-language links: Latin.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
irritateverbExcite to some characteristic action or condition, such as motion, contraction, or nervous impulse, by the application of a stimulus.intermediate
Irritate the glands of a leaf.
ORIGIN SUMMARYSource-language links: Latin.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
irritatedadjectiveAroused to impatience or anger.advanced
Made an irritated gesture.
Definition and example: WordNet 3.0. Origin not available for this entry.
irritatingadjectiveCausing irritation or annoyance.advanced
An irritating delay.
Definition and example: WordNet 3.0. Origin not available for this entry.
irritationnoun(pathology) abnormal sensitivity to stimulation.advanced
Any food produced irritation of the stomach.
ORIGIN SUMMARYSource-language links: Middle French.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
islandnounA piece of land surrounded by water.beginner
A small boat carried us to the island.
ORIGIN SUMMARYOld English
Original teaching entry.
isolateverbObtain in pure form.intermediate
The chemist managed to isolate the compound.
ORIGIN SUMMARYSource-language links: French, Italian, Latin. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
isolatedadjectiveNot close together in time.intermediate
Isolated instances of rebellion.
ORIGIN SUMMARYSource-language links: French, Italian, Latin. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
isolationnounA country's withdrawal from international politics.advanced
He opposed a policy of American isolation.
ORIGIN SUMMARYSource-language links: Ancient Greek, French, Italian, Latin, Old French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
issuenounAn important question that is in dispute and must be settled.beginner
The issue could be settled by requiring public education for everyone.
ORIGIN SUMMARYSource-language links: Latin, Middle English, Old French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
itchyadjectiveCausing an irritating cutaneous sensation; being affect with an itch.beginner
He had an itchy toe from the mosquito bite.
ORIGIN SUMMARYSource-language links: Middle English, Old English. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
itemnounA distinct part that can be specified separately in a group of things that could be enumerated on a list.beginner
He noticed an item in the New York Times.
ORIGIN SUMMARYSource-language links: Latin, Middle English. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
itemizeverbPlace on a list of items.intermediate
Itemize one's tax deductions.
ORIGIN SUMMARYSource-language links: Latin, Middle English. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
iterationnoun(computer science) executing the same set of instructions a given number of times or until a specified result is obtained.advanced
The solution is obtained by iteration.
ORIGIN SUMMARYSource-language links: Ancient Greek, Latin. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
itinerantadjectiveTraveling from place to place to work.advanced
An itinerant judge.
ORIGIN SUMMARYSource-language links: Late Latin.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
izzardnounThe 26th letter of the Roman alphabet.beginner
He doesn't know A from izzard.
ORIGIN SUMMARYSource-language links: Middle English, Old French. The source may include more than one historical route or component.
Definition and example: WordNet 3.0. Origin references: Wiktionary / etymology-db (CC BY-SA 3.0) ↗
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Definitions and usage examples in the expanded bank come from WordNet 3.0, with pronunciation references from CMUdict. Records are automatically screened and source-validated, not individually human reviewed. Practice difficulty is an estimate, not a grade level or official Scripps band. Sources and coverage ↗ · WordNet license · CMUdict license