| arrest | (verb) hold back, as of a danger or an enemy; check the expansion or influence of | Synonyms: check, contain, hold back, stop, turn back |
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| (verb) take into custody | Synonyms: apprehend, collar, cop, nab, nail, pick up |
| (verb) attract and fix | Synonyms: catch, get |
| (verb) cause to come to an abrupt stop | Synonyms: halt, hold |
| arterialise | (verb) change venous blood into arterial blood | Synonyms: arterialize |
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| ascend | (verb) slope upwards | - |
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| (verb) travel up | Synonyms: go up |
| (verb) come up, of celestial bodies | Synonyms: come up, rise, uprise |
| (verb) go along towards (a river's) source | - |
| (verb) move to a better position in life or to a better job | Synonyms: move up, rise |
| (verb) appear to be moving upward, as by means of tendrils | Synonyms: climb up |
| (verb) become king or queen | - |
| (verb) go back in order of genealogical succession | - |
| ascertain | (verb) be careful or certain to do something; make certain of something | Synonyms: assure, check, control, ensure, insure, see, see to it |
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| (verb) learn or discover with certainty | - |
| (verb) find out, learn, or determine with certainty, usually by making an inquiry or other effort | Synonyms: check, determine, find out, learn, see, watch |
| (verb) establish after a calculation, investigation, experiment, survey, or study | Synonyms: determine, find, find out |
| ascribe | (verb) attribute or credit to | Synonyms: assign, attribute, impute |
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| ash | (verb) convert into ashes | - |
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| ask | (verb) make a request or demand for something to somebody | - |
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| (verb) direct or put; seek an answer to | - |
| (verb) address a question to and expect an answer from | Synonyms: enquire, inquire |
| (verb) consider obligatory; request and expect | Synonyms: expect, require |
| (verb) require or ask for as a price or condition | - |
| (verb) make a date | Synonyms: ask out, invite out, take out |
| (verb) require as useful, just, or proper | Synonyms: call for, demand, involve, necessitate, need, postulate, require, take |
| asperse | (verb) charge falsely or with malicious intent; attack the good name and reputation of someone | Synonyms: besmirch, calumniate, defame, denigrate, slander, smear, smirch, sully |
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| asphalt | (verb) cover with tar or asphalt | - |
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| asphyxiate | (verb) be asphyxiated; die from lack of oxygen | Synonyms: stifle, suffocate |
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| (verb) deprive of oxygen and prevent from breathing | Synonyms: smother, suffocate |
| (verb) impair the respiration of or obstruct the air passage of | Synonyms: choke, stifle, suffocate |
| aspirate | (verb) inhale (air, water, etc.) | - |
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| (verb) pronounce with aspiration; of stop sounds | - |
| (verb) remove by suction | Synonyms: draw out, suck out |
| aspire | (verb) have an ambitious plan or a lofty goal | Synonyms: aim, draw a bead on, shoot for |
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| assail | (verb) attack in speech or writing | Synonyms: assault, attack, lash out, round, snipe |
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| (verb) attack someone physically or emotionally | Synonyms: assault, attack, set on |
| (verb) launch an attack or assault on; begin hostilities or start warfare with | Synonyms: attack |
| assassinate | (verb) destroy or damage seriously, as of someone's reputation | - |
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| (verb) murder; especially of socially prominent persons | - |
| assault | (verb) attack in speech or writing | Synonyms: assail, attack, lash out, round, snipe |
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| (verb) attack someone physically or emotionally | Synonyms: assail, attack, set on |
| (verb) force (someone) to have sex against their will | Synonyms: dishonor, dishonour, outrage, rape, ravish, violate |
| assay | (verb) analyze (chemical substances) | - |
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| (verb) make an effort or attempt | Synonyms: attempt, essay, seek, try |
| assemble | (verb) create by putting components or members together | Synonyms: piece, put together, set up, tack, tack together |
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| (verb) collect in one place | Synonyms: foregather, forgather, gather, meet |
| (verb) get people together | Synonyms: gather, get together |
| assent | (verb) to agree or express agreement | Synonyms: accede, acquiesce |
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| assert | (verb) postulate positively and assertively | Synonyms: insist |
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| (verb) to declare or affirm solemnly and formally as true | Synonyms: affirm, aver, avow, swan, swear, verify |
| (verb) state categorically | Synonyms: asseverate, maintain |
| (verb) insist on having one's opinions and rights recognized | Synonyms: put forward |
| assess | (verb) evaluate or estimate the nature, quality, ability, extent, or significance of | Synonyms: appraise, evaluate, measure, valuate, value |
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| (verb) estimate the value of (property) for taxation | - |
| (verb) set or determine the amount of (a payment such as a fine) | Synonyms: tax |
| (verb) charge (a person or a property) with a payment, such as a tax or a fine | - |
| asseverate | (verb) state categorically | Synonyms: assert, maintain |
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| assibilate | (verb) change into a sibilant | - |
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| (verb) insert a sibilant sound before or after (another sound) | - |
| assign | (verb) select something or someone for a specific purpose | Synonyms: set apart, specify |
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| (verb) attribute or credit to | Synonyms: ascribe, attribute, impute |
| (verb) decide as to where something belongs in a scheme | Synonyms: attribute |
| (verb) attribute or give | Synonyms: put |
| (verb) transfer one's right to | - |
| (verb) give out | Synonyms: allot, portion |
| (verb) make undue claims to having | Synonyms: arrogate |
| (verb) give an assignment to (a person) to a post, or assign a task to (a person) | Synonyms: delegate, depute, designate |
| assimilate | (verb) become similar to one's environment | - |
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| (verb) make similar | - |
| (verb) become similar in sound | - |
| (verb) take up mentally | Synonyms: absorb, ingest, take in |
| (verb) take (gas, light or heat) into a solution | Synonyms: imbibe |
| assist | (verb) act as an assistant in a subordinate or supportive function | - |
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| (verb) work for, or be a servant to | Synonyms: attend, attend to, serve, wait on |
| (verb) give help or assistance; be of service | Synonyms: aid, help |
| associate | (verb) make a logical or causal connection | Synonyms: colligate, connect, link, link up, relate, tie in |
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| (verb) bring or come into association or action | Synonyms: consociate |
| (verb) keep company with; hang out with | Synonyms: affiliate, assort, consort |
| assoil | (verb) pronounce not guilty of criminal charges | Synonyms: acquit, clear, discharge, exculpate, exonerate |
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| assonate | (verb) correspond in vowel sounds; rhyme in assonance | - |
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| assort | (verb) arrange or order by classes or categories | Synonyms: class, classify, separate, sort, sort out |
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| (verb) keep company with; hang out with | Synonyms: affiliate, associate, consort |
| assuage | (verb) provide physical relief, as from pain | Synonyms: alleviate, palliate, relieve |
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| (verb) satisfy (thirst) | Synonyms: allay, quench, slake |
| (verb) cause to be more favorably inclined; gain the good will of | Synonyms: appease, conciliate, gentle, gruntle, lenify, mollify, pacify, placate |
| assume | (verb) put clothing on one's body | Synonyms: don, get into, put on, wear |
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| (verb) take on a certain form, attribute, or aspect | Synonyms: acquire, adopt, take, take on |
| (verb) take to be the case or to be true; accept without verification or proof | Synonyms: presume, take for granted |
| (verb) take up someone's soul into heaven | - |
| (verb) make a pretence of | Synonyms: feign, sham, simulate |
| (verb) occupy or take on | Synonyms: strike, take, take up |
| (verb) seize and take control without authority and possibly with force; take as one's right or possession | Synonyms: arrogate, seize, take over, usurp |
| (verb) take on as one's own the expenses or debts of another person | Synonyms: accept, bear, take over |
| (verb) take on titles, offices, duties, responsibilities | Synonyms: adopt, take on, take over |
| assure | (verb) be careful or certain to do something; make certain of something | Synonyms: ascertain, check, control, ensure, insure, see, see to it |
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| (verb) inform positively and with certainty and confidence | Synonyms: tell |
| (verb) assure somebody of the truth of something with the intention of giving the listener confidence | - |
| (verb) make a promise or commitment | Synonyms: promise |
| (verb) make certain of | Synonyms: ensure, guarantee, insure, secure |
| asterisk | (verb) mark with an asterisk | Synonyms: star |
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| astonish | (verb) affect with wonder | Synonyms: amaze, astound |
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| astound | (verb) affect with wonder | Synonyms: amaze, astonish |
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| astringe | (verb) become constricted or compressed | - |
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| (verb) constrict or bind or draw together | - |
| astrogate | (verb) navigate in space | - |
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| (verb) guide in interplanetary travel | - |
| atomise | (verb) break up into small particles | Synonyms: atomize |
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| (verb) strike at with firepower or bombs | Synonyms: atomize, nuke, zap |
| (verb) spray very finely | Synonyms: atomize |
| attest | (verb) authenticate, affirm to be true, genuine, or correct, as in an official capacity | - |
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| (verb) provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes | Synonyms: certify, demonstrate, evidence, manifest |
| (verb) give testimony in a court of law | Synonyms: bear witness, take the stand, testify |
| (verb) establish or verify the usage of | - |
| attitudinise | (verb) assume certain affected attitudes | Synonyms: attitudinize |
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| auscultate | (verb) examine by auscultation | - |
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| auspicate | (verb) commence in a manner calculated to bring good luck | - |
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| (verb) indicate, as with a sign or an omen | Synonyms: augur, betoken, bode, forecast, foreshadow, foretell, omen, portend, predict, prefigure, presage, prognosticate |
| authorise | (verb) grant authorization or clearance for | Synonyms: authorize, clear, pass |
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| (verb) give or delegate power or authority to | Synonyms: authorize, empower |
| automatise | (verb) make automatic or control or operate automatically | Synonyms: automate, automatize |
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| (verb) turn into an automaton | Synonyms: automatize |
| autopsy | (verb) perform an autopsy on a dead body; do a post-mortem | - |
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| autotomise | (verb) cause a body part to undergo autotomy | Synonyms: autotomize |
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| avianise | (verb) to modify microorganisms by repeated culture in the developing chick embryo | Synonyms: avianize |
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| avulse | (verb) separate by avulsion | - |
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| babysit | (verb) work or act as a baby-sitter | Synonyms: baby-sit, sit |
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| (verb) take watchful responsibility for | Synonyms: baby-sit |
| backcross | (verb) mate a hybrid of the first generation with one of its parents | - |
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| backlash | (verb) come back to the originator of an action with an undesired effect | Synonyms: backfire, recoil |
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| backscatter | (verb) scatter (radiation) by the atoms of the medium through which it passes | - |
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| backslap | (verb) display excessive cordiality (towards) | - |
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| backslide | (verb) drop to a lower level, as in one's morals or standards | Synonyms: lapse |
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| backspace | (verb) hit the backspace key on a computer or typewriter keyboard | - |
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| backstitch | (verb) do backstitches | - |
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| backstop | (verb) act as a backstop | - |
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| backstroke | (verb) swim on one's back | - |
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| bacterise | (verb) subject to the action of bacteria | Synonyms: bacterize |
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| ballast | (verb) make steady with a ballast | - |
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| banish | (verb) drive away | - |
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| (verb) expel, as if by official decree | Synonyms: bar, relegate |
| (verb) expel from a community or group | Synonyms: ban, blackball, cast out, ostracise, ostracize, shun |
| (verb) ban from a place of residence, as for punishment | Synonyms: ban |
| baptise | (verb) administer baptism to | Synonyms: baptize, christen |
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| barbarise | (verb) make crude or savage in behavior or speech | Synonyms: barbarize |
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| (verb) become crude or savage or barbaric in behavior or language | Synonyms: barbarize |
| barnstorm | (verb) tour the country making political speeches, giving lectures, or presenting plays | - |
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| (verb) appear at county fairs and carnivals as a stunt flier and parachute jumper | - |
| baronetise | (verb) confer baronetcy upon | Synonyms: baronetize |
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| base | (verb) use as a basis for; found on | Synonyms: establish, found, ground |
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| (verb) use (purified cocaine) by burning it and inhaling the fumes | Synonyms: free-base |
| (verb) situate as a center of operations | - |
| bash | (verb) hit hard | Synonyms: bonk, bop, sock, whap, whop |
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| basify | (verb) turn basic and less acidic | Synonyms: alkalify, alkalise, alkalize |
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| bask | (verb) be exposed | - |
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| (verb) derive or receive pleasure from; get enjoyment from; take pleasure in | Synonyms: enjoy, relish, savor, savour |
| basset | (verb) appear at the surface | Synonyms: crop out |
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| bastardise | (verb) declare a child to be illegitimate | Synonyms: bastardize |
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| (verb) change something so that its value declines; for example, art forms | Synonyms: bastardize |
| bastardize | (verb) declare a child to be illegitimate | Synonyms: bastardise |
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| (verb) change something so that its value declines; for example, art forms | Synonyms: bastardise |
| baste | (verb) cover with liquid before cooking | - |
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| (verb) sew together loosely, with large stitches | Synonyms: tack |
| (verb) strike violently and repeatedly | Synonyms: batter, clobber |
| bastinado | (verb) beat somebody on the soles of the feet | - |
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| beeswax | (verb) cover with beeswax | - |
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| bemuse | (verb) cause to be confused emotionally | Synonyms: bewilder, discombobulate, throw |
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| beplaster | (verb) cover conspicuously or thickly, as by pasting something on | Synonyms: plaster |
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| beseech | (verb) ask for or request earnestly | Synonyms: adjure, bid, conjure, entreat, press |
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| beseem | (verb) accord or comport with | Synonyms: befit, suit |
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| beset | (verb) assail or attack on all sides: | Synonyms: set upon |
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| (verb) decorate or cover lavishly (as with gems) | Synonyms: encrust, incrust |
| (verb) annoy continually or chronically | Synonyms: chevvy, chevy, chivvy, chivy, harass, harry, hassle, molest, plague, provoke |
| beshrew | (verb) wish harm upon; invoke evil upon | Synonyms: anathemise, anathemize, bedamn, curse, damn, imprecate, maledict |
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| besiege | (verb) harass, as with questions or requests | - |
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| (verb) surround so as to force to give up | Synonyms: beleaguer, circumvent, hem in, surround |
| (verb) cause to feel distressed or worried | - |
| besmear | (verb) spread or daub (a surface) | Synonyms: bedaub |
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| besmirch | (verb) charge falsely or with malicious intent; attack the good name and reputation of someone | Synonyms: asperse, calumniate, defame, denigrate, slander, smear, smirch, sully |
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| (verb) smear so as to make dirty or stained | Synonyms: smirch |
| besot | (verb) make dull or stupid or muddle with drunkenness or infatuation | Synonyms: stupefy |
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| bespangle | (verb) dot or sprinkle with sparkling or glittering objects | - |
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| (verb) decorate with spangles | Synonyms: spangle |
| bespatter | (verb) spot, splash, or soil | Synonyms: spatter |
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| bespeak | (verb) express the need or desire for | Synonyms: ask for, call for, quest, request |
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| (verb) be a signal for or a symptom of | Synonyms: betoken, indicate, point, signal |
| bespeckle | (verb) mark with small spots | Synonyms: speckle |
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| bespot | (verb) mark with, or as if with, spots | - |
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| besprinkle | (verb) scatter with liquid; wet lightly | Synonyms: sparge, sprinkle |
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| best | (verb) get the better of | Synonyms: outdo, outflank, scoop, trump |
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| bestialise | (verb) make brutal and depraved; give animal-like qualities to | Synonyms: bestialize |
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| bestialize | (verb) make brutal and depraved; give animal-like qualities to | Synonyms: bestialise |
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| bestir | (verb) become active | Synonyms: rouse |
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| bestow | (verb) present | Synonyms: confer |
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| (verb) bestow a quality on | Synonyms: add, bring, contribute, impart, lend |
| (verb) give as a gift | - |
| bestrew | (verb) cover by strewing | - |
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| bestride | (verb) get up on the back of | Synonyms: climb on, get on, hop on, jump on, mount, mount up |
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| bewhisker | (verb) furnish with whiskers | Synonyms: whisker |
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| bias | (verb) cause to be biased | Synonyms: predetermine |
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| (verb) influence in an unfair way | - |