| haemagglutinate | (verb) cause the clumping together (of red blood cells) | Synonyms: hemagglutinate |
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| hallucinate | (verb) perceive what is not there; have illusions | - |
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| hate | (verb) to have and express negative sentiments about a person | - |
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| (verb) dislike intensely; feel antipathy or aversion towards | Synonyms: detest |
| hemagglutinate | (verb) cause the clumping together (of red blood cells) | Synonyms: haemagglutinate |
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| hesitate | (verb) pause or hold back in uncertainty or unwillingness | Synonyms: waffle, waver |
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| (verb) interrupt temporarily an activity before continuing | Synonyms: pause |
| hibernate | (verb) sleep during winter | Synonyms: hole up |
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| (verb) be in an inactive or dormant state | - |
| horripilate | (verb) cause (someone's) hair to stand on end and to have goosebumps | - |
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| (verb) have one's hair stand on end and get goosebumps | - |
| humiliate | (verb) cause to feel shame; hurt the pride of | Synonyms: abase, chagrin, humble, mortify |
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| hydrate | (verb) cause to be hydrated; add water or moisture to | - |
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| (verb) become hydrated and combine with water | - |
| (verb) supply water or liquid to in order to maintain a healthy balance | - |
| hydrogenate | (verb) combine or treat with or expose to hydrogen; add hydrogen to the molecule of (an unsaturated organic compound) | - |
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| hyperventilate | (verb) breathe excessively hard and fast | - |
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| (verb) produce hyperventilation in | - |
| hyphenate | (verb) divide or connect with a hyphen | Synonyms: hyphen |
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| hypothecate | (verb) to believe especially on uncertain or tentative grounds | Synonyms: conjecture, hypothesise, hypothesize, speculate, suppose, theorise, theorize |
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| (verb) pledge without delivery or title of possession | - |
| ideate | (verb) form a mental image of something that is not present or that is not the case | Synonyms: conceive of, envisage, imagine |
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| illuminate | (verb) introduce light into | Synonyms: illume, illumine, light, light up |
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| (verb) make free from confusion or ambiguity; make clear | Synonyms: clear, clear up, crystalise, crystalize, crystallise, crystallize, elucidate, enlighten, shed light on, sort out, straighten out |
| (verb) add embellishments and paintings to (medieval manuscripts) | - |
| illustrate | (verb) clarify by giving an example of | Synonyms: exemplify, instance |
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| (verb) depict with an illustration | - |
| (verb) supply with illustrations | - |
| imbricate | (verb) overlap | - |
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| (verb) place so as to overlap | - |
| imitate | (verb) reproduce someone's behavior or looks | Synonyms: copy, simulate |
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| (verb) make a reproduction or copy of | - |
| (verb) appear like, as in behavior or appearance | - |
| immigrate | (verb) come into a new country and change residency | - |
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| (verb) migrate to a new environment | - |
| (verb) introduce or send as immigrants | - |
| immolate | (verb) offer as a sacrifice by killing or by giving up to destruction | - |
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| impersonate | (verb) pretend to be someone you are not; sometimes with fraudulent intentions | Synonyms: personate, pose |
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| (verb) represent another person with comic intentions | - |
| (verb) assume or act the character of | Synonyms: portray |
| implicate | (verb) impose, involve, or imply as a necessary accompaniment or result | Synonyms: entail |
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| (verb) bring into intimate and incriminating connection | - |
| imprecate | (verb) utter obscenities or profanities | Synonyms: blaspheme, curse, cuss, swear |
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| (verb) wish harm upon; invoke evil upon | Synonyms: anathemise, anathemize, bedamn, beshrew, curse, damn, maledict |
| impregnate | (verb) make pregnant | Synonyms: bang up, knock up, prang up |
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| (verb) fertilize and cause to grow | - |
| (verb) infuse or fill completely | Synonyms: saturate |
| (verb) fill, as with a certain quality | Synonyms: infuse, instill, tincture |
| inactivate | (verb) make inactive | Synonyms: deactivate |
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| (verb) release from military service or remove from the active list of military service | Synonyms: demobilise, demobilize |
| inaugurate | (verb) be a precursor of | Synonyms: introduce, usher in |
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| (verb) commence officially | Synonyms: kick off |
| (verb) open ceremoniously or dedicate formally | - |
| incapacitate | (verb) injure permanently | Synonyms: disable, handicap, invalid |
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| (verb) make unable to perform a certain action | Synonyms: disable, disenable |
| incarcerate | (verb) lock up or confine, in or as in a jail | Synonyms: gaol, immure, imprison, jail, jug, lag, put away, put behind bars, remand |
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| incarnate | (verb) make concrete and real | - |
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| (verb) represent in bodily form | Synonyms: body forth, embody, substantiate |
| incinerate | (verb) cause to undergo combustion | Synonyms: burn |
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| (verb) become reduced to ashes | - |
| incorporate | (verb) make into a whole or make part of a whole | Synonyms: integrate |
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| (verb) unite or merge with something already in existence | - |
| (verb) form a corporation | - |
| (verb) include or contain; have as a component | Synonyms: comprise, contain |
| incriminate | (verb) bring an accusation against; level a charge against | Synonyms: accuse, criminate, impeach |
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| (verb) suggest that someone is guilty | Synonyms: imply, inculpate |
| incubate | (verb) sit on (eggs) | Synonyms: brood, cover, hatch |
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| (verb) grow under conditions that promote development | - |
| inculcate | (verb) teach and impress by frequent repetitions or admonitions | Synonyms: infuse, instill |
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| inculpate | (verb) suggest that someone is guilty | Synonyms: imply, incriminate |
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| incurvate | (verb) cause to curve inward | - |
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| (verb) bend inwards | - |
| indicate | (verb) to state or express briefly | - |
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| (verb) be a signal for or a symptom of | Synonyms: bespeak, betoken, point, signal |
| (verb) give evidence of | Synonyms: argue |
| (verb) indicate a place, direction, person, or thing; either spatially or figuratively | Synonyms: designate, point, show |
| (verb) suggest the necessity of an intervention; in medicine | - |
| individuate | (verb) give individual shape or form to | - |
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| (verb) give individual character to | - |
| indoctrinate | (verb) teach doctrines to; teach uncritically | - |
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| indurate | (verb) become hard or harder | Synonyms: harden |
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| (verb) make hard or harder | Synonyms: harden |
| (verb) become fixed or established | - |
| (verb) cause to accept or become hardened to; habituate | Synonyms: harden, inure |
| inebriate | (verb) become drunk or drink excessively | Synonyms: hit it up, soak, souse |
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| (verb) make drunk (with alcoholic drinks) | Synonyms: intoxicate, soak |
| (verb) fill with sublime emotion | Synonyms: beatify, exalt, exhilarate, thrill, tickle pink |
| infatuate | (verb) arouse unreasoning love or passion in and cause to behave in an irrational way | - |
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| infiltrate | (verb) pass through an enemy line; in a military conflict | Synonyms: pass through |
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| (verb) cause (a liquid) to enter by penetrating the interstices | - |
| (verb) pass into or through by filtering or permeating | - |
| (verb) enter a group or organization in order to spy on the members | Synonyms: penetrate |
| inflate | (verb) fill with gas or air | Synonyms: blow up |
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| (verb) exaggerate or make bigger | Synonyms: amplify, blow up, expand |
| (verb) become inflated | Synonyms: balloon, billow |
| (verb) increase the amount or availability of, creating a rise in value | - |
| (verb) cause prices to rise by increasing the available currency or credit | - |
| infuriate | (verb) make furious | Synonyms: exasperate, incense |
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| infuscate | (verb) darken with a brownish tinge, as of insect wings | - |
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| ingeminate | (verb) to say, state, or perform again | Synonyms: iterate, reiterate, repeat, restate, retell |
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| ingratiate | (verb) gain favor with somebody by deliberate efforts | - |
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| ingurgitate | (verb) overeat or eat immodestly; make a pig of oneself | Synonyms: binge, englut, engorge, glut, gorge, gormandise, gormandize, gourmandize, overeat, overgorge, overindulge, pig out, satiate, scarf out, stuff |
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| initiate | (verb) set in motion, start an event or prepare the way for | Synonyms: lead up |
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| (verb) bring up a topic for discussion | Synonyms: broach |
| (verb) take the lead or initiative in; participate in the development of | Synonyms: pioneer |
| (verb) bring into being | Synonyms: originate, start |
| (verb) accept people into an exclusive society or group, usually with some rite | Synonyms: induct |
| innervate | (verb) stimulate to action | - |
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| (verb) supply nerves to (some organ or body part) | - |
| innovate | (verb) bring something new to an environment | Synonyms: introduce |
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| inoculate | (verb) perform vaccinations or produce immunity in by inoculation | Synonyms: immunise, immunize, vaccinate |
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| (verb) insert a bud for propagation | - |
| (verb) impregnate with the virus or germ of a disease in order to render immune | - |
| (verb) introduce a microorganism into | - |
| (verb) introduce an idea or attitude into the mind of | - |
| inosculate | (verb) cause to join or open into each other by anastomosis | Synonyms: anastomose |
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| (verb) come together or open into each other | Synonyms: anastomose |
| inseminate | (verb) introduce semen into (a female) | Synonyms: fecundate, fertilise, fertilize |
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| (verb) place seeds in or on (the ground) | Synonyms: sow, sow in |
| insinuate | (verb) give to understand | Synonyms: adumbrate, intimate |
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| (verb) introduce or insert (oneself) in a subtle manner | - |
| insolate | (verb) expose to the rays of the sun or affect by exposure to the sun | Synonyms: solarise, solarize, sun |
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| inspissate | (verb) become thick or thicker | Synonyms: thicken |
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| (verb) make thick or thicker | Synonyms: thicken |
| (verb) make viscous or dense | Synonyms: thicken |
| instantiate | (verb) find an instance of (a word or particular usage of a word) | - |
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| (verb) represent by an instance | - |
| instigate | (verb) provoke or stir up | Synonyms: incite, set off, stir up |
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| (verb) serve as the inciting cause of | Synonyms: inspire, prompt |
| instrumentate | (verb) write an instrumental score for | Synonyms: instrument |
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| insufflate | (verb) blow or breathe hard on or into | - |
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| (verb) treat by blowing a powder or vapor into a bodily cavity | - |
| (verb) breathe or blow onto as a ritual or sacramental act, especially so as to symbolize the action of the Holy Spirit | - |
| insulate | (verb) place or set apart | Synonyms: isolate |
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| (verb) protect from heat, cold, or noise by surrounding with insulating material | - |
| integrate | (verb) make into a whole or make part of a whole | Synonyms: incorporate |
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| (verb) become one; become integrated | - |
| (verb) calculate the integral of; calculate by integration | - |
| (verb) open (a place) to members of all races and ethnic groups | Synonyms: desegregate, mix |
| intercalate | (verb) insert (days) in a calendar | - |
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| intercommunicate | (verb) transmit thoughts or feelings | Synonyms: communicate |
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| (verb) be interconnected, afford passage | - |
| intermediate | (verb) act between parties with a view to reconciling differences | Synonyms: arbitrate, intercede, liaise, mediate |
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| interpellate | (verb) question formally about policy or government business | - |
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| interpenetrate | (verb) penetrate mutually or be interlocked | Synonyms: permeate |
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| (verb) spread or diffuse through | Synonyms: diffuse, imbue, penetrate, permeate, pervade, riddle |
| interpolate | (verb) insert words into texts, often falsifying it thereby | Synonyms: alter, falsify |
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| (verb) estimate the value of something based on known values | Synonyms: extrapolate |
| interrelate | (verb) place into a mutual relationship | - |
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| (verb) be in a relationship with | Synonyms: relate |
| interrogate | (verb) pose a series of questions to | Synonyms: question |
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| (verb) transmit (a signal) for setting off an appropriate response, as in telecommunication | - |
| intimate | (verb) give to understand | Synonyms: adumbrate, insinuate |
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| (verb) imply as a possibility | Synonyms: suggest |
| intimidate | (verb) make timid or fearful | - |
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| (verb) to compel or deter by or as if by threats | - |
| intonate | (verb) recite with musical intonation; recite as a chant or a psalm | Synonyms: cantillate, chant, intone |
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| (verb) speak carefully, as with rising and falling pitch or in a particular tone | Synonyms: intone |
| intoxicate | (verb) have an intoxicating effect on, of a drug | - |
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| (verb) make drunk (with alcoholic drinks) | Synonyms: inebriate, soak |
| (verb) fill with high spirits; fill with optimism | Synonyms: elate, lift up, pick up, uplift |
| intubate | (verb) introduce a cannula or tube into | Synonyms: cannulate, cannulise, cannulize, canulate |
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| inundate | (verb) fill or cover completely, usually with water | Synonyms: deluge, submerge |
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| (verb) fill quickly beyond capacity; as with a liquid | Synonyms: deluge, flood, swamp |
| invaginate | (verb) fold inwards | Synonyms: introvert |
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| (verb) sheathe | - |
| invalidate | (verb) take away the legal force of or render ineffective | Synonyms: vitiate, void |
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| (verb) show to be invalid | Synonyms: nullify |
| (verb) make invalid for use | Synonyms: cancel |
| (verb) declare invalid | Synonyms: annul, avoid, nullify, quash, void |
| investigate | (verb) investigate scientifically | Synonyms: look into |
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| (verb) conduct an inquiry or investigation of | Synonyms: enquire, inquire |
| invigilate | (verb) watch over (students taking an exam, to prevent cheating) | Synonyms: proctor |
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| invigorate | (verb) impart vigor, strength, or vitality to | Synonyms: reinvigorate |
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| (verb) make lively | Synonyms: animate, enliven, liven, liven up |
| (verb) give life or energy to | Synonyms: quicken |
| (verb) heighten or intensify | Synonyms: animate, enliven, exalt, inspire |
| iodinate | (verb) cause to combine with iodine | - |
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| ionate | (verb) add ions to | - |
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| irradiate | (verb) expose to radiation | Synonyms: ray |
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| (verb) cast rays of light upon | - |
| (verb) give spiritual insight to; in religion | Synonyms: enlighten |
| irrigate | (verb) supply with a constant flow or sprinkling of some liquid, for the purpose of cooling, cleansing, or disinfecting | - |
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| (verb) supply with water, as with channels or ditches or streams | Synonyms: water |
| irritate | (verb) excite to an abnormal condition, or chafe or inflame | - |
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| (verb) excite to some characteristic action or condition, such as motion, contraction, or nervous impulse, by the application of a stimulus | - |
| (verb) cause annoyance in; disturb, especially by minor irritations | Synonyms: annoy, bother, chafe, devil, get at, get to, gravel, nark, nettle, rag, rile, vex |
| isolate | (verb) place or set apart | Synonyms: insulate |
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| (verb) obtain in pure form | - |
| (verb) set apart from others | Synonyms: keep apart, sequester, sequestrate, set apart |
| (verb) separate (experiences) from the emotions relating to them | - |
| iterate | (verb) run or be performed again | - |
|---|
| (verb) to say, state, or perform again | Synonyms: ingeminate, reiterate, repeat, restate, retell |
| itinerate | (verb) travel from place to place, as for work | - |
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| jactitate | (verb) move or stir about violently | Synonyms: convulse, slash, thrash, thrash about, thresh, thresh about, toss |
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| jubilate | (verb) to express great joy | Synonyms: exuberate, exult, rejoice, triumph |
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| (verb) celebrate a jubilee | - |
| lacerate | (verb) cut or tear irregularly | - |
|---|
| (verb) deeply hurt the feelings of; distress | - |
| lactate | (verb) give suck to | Synonyms: breastfeed, give suck, nurse, suck, suckle, wet-nurse |
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| laminate | (verb) cover with a thin sheet of non-fabric material | - |
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| (verb) press or beat (metals) into thin sheets | - |
| (verb) split (wood) into thin sheets | - |
| (verb) create laminate by bonding sheets of material with a bonding material | - |
| lapidate | (verb) kill by throwing stones at | Synonyms: stone |
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| (verb) throw stones at | - |
| legislate | (verb) make laws, bills, etc. or bring into effect by legislation | Synonyms: pass |
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| legitimate | (verb) make (an illegitimate child) legitimate; declare the legitimacy of (someone) | - |
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| (verb) show or affirm to be just and legitimate | - |
| (verb) make legal | Synonyms: decriminalise, decriminalize, legalise, legalize, legitimatise, legitimatize, legitimise, legitimize |
| levitate | (verb) be suspended in the air, as if in defiance of gravity | Synonyms: hover |
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| (verb) cause to rise in the air and float, as if in defiance of gravity | - |