| argument | (noun) a variable in a logical or mathematical expression whose value determines the dependent variable; if f(x)=y, x is the independent variable | - |
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| (noun) a course of reasoning aimed at demonstrating a truth or falsehood; the methodical process of logical reasoning | Synonyms: argumentation, line, line of reasoning, logical argument |
| (noun) a discussion in which reasons are advanced for and against some proposition or proposal | Synonyms: argumentation, debate |
| (noun) a summary of the subject or plot of a literary work or play or movie | Synonyms: literary argument |
| (noun) a fact or assertion offered as evidence that something is true | Synonyms: statement |
| (noun) a contentious speech act; a dispute where there is strong disagreement | Synonyms: arguing, contention, contestation, controversy, disceptation, disputation, tilt |
| (noun) (computer science) a reference or value that is passed to a function, procedure, subroutine, command, or program | Synonyms: parameter |
| arianist | (noun) an adherent of Arianism (the belief that Jesus Christ was not truly God) | - |
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| aright | (adverb) in an accurate manner | Synonyms: correctly, right |
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| aristocrat | (noun) a member of the aristocracy | Synonyms: blue blood, patrician |
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| armament | (noun) the act of equipping with weapons in preparation for war | Synonyms: arming, equipping |
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| (noun) weaponry used by military or naval force | - |
| armet | (noun) a medieval helmet with a visor and a neck guard | - |
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| armlet | (noun) a band worn around the arm for decoration | Synonyms: arm band |
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| armpit | (noun) the hollow under the arm where it is joined to the shoulder | Synonyms: axilla, axillary cavity, axillary fossa |
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| armrest | (noun) a support for the arm | - |
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| arpent | (noun) a former French unit of area; equal approximately to an acre | - |
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| arraignment | (noun) a legal document calling someone to court to answer an indictment | - |
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| arrangement | (noun) the act of arranging and adapting a piece of music | Synonyms: arranging, transcription |
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| (noun) the spatial property of the way in which something is placed | Synonyms: placement |
| (noun) an organized structure for arranging or classifying | Synonyms: organisation, organization, system |
| (noun) the thing arranged or agreed to | Synonyms: agreement |
| (noun) a piece of music that has been adapted for performance by a particular set of voices or instruments | Synonyms: musical arrangement |
| (noun) an orderly grouping (of things or persons) considered as a unit; the result of arranging | - |
| arrant | (adjective) without qualification; used informally as (often pejorative) intensifiers | Synonyms: complete, consummate, double-dyed, everlasting, gross, perfect, pure, sodding, staring, stark, thorough, thoroughgoing, unadulterated, utter |
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| arrest | (noun) the act of apprehending (especially apprehending a criminal) | Synonyms: apprehension, catch, collar, pinch, taking into custody |
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| (noun) the state of inactivity following an interruption | Synonyms: check, halt, hitch, stay, stop, stoppage |
| (verb) hold back, as of a danger or an enemy; check the expansion or influence of | Synonyms: check, contain, hold back, stop, turn back |
| (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 |
| arrogant | (adjective) having or showing feelings of unwarranted importance out of overbearing pride | Synonyms: chesty, self-important |
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| arrowroot | (noun) white-flowered West Indian plant whose root yields arrowroot starch | Synonyms: American arrowroot, Maranta arundinaceae, obedience plant |
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| (noun) canna grown especially for its edible rootstock from which arrowroot starch is obtained | Synonyms: achira, Canna edulis, Canna indica, indian shot |
| (noun) a nutritive starch obtained from the root of the arrowroot plant | - |
| arsonist | (noun) a criminal who illegally sets fire to property | Synonyms: firebug, incendiary |
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| art | (noun) the creation of beautiful or significant things | Synonyms: artistic creation, artistic production |
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| (noun) the products of human creativity; works of art collectively | Synonyms: fine art |
| (noun) a superior skill that you can learn by study and practice and observation | Synonyms: artistry, prowess |
| (noun) photographs or other visual representations in a printed publication | Synonyms: artwork, graphics, nontextual matter |
| artefact | (noun) a man-made object taken as a whole | Synonyms: artifact |
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| artifact | (noun) a man-made object taken as a whole | Synonyms: artefact |
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| artist | (noun) a person whose creative work shows sensitivity and imagination | Synonyms: creative person |
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| ascendant | (adjective) tending or directed upward | Synonyms: ascendent, ascensive |
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| (adjective) most powerful or important or influential | Synonyms: ascendent, dominating |
| (noun) someone from whom you are descended (but usually more remote than a grandparent) | Synonyms: ancestor, antecedent, ascendent, root |
| (noun) position or state of being dominant or in control | Synonyms: ascendent |
| ascendent | (adjective) tending or directed upward | Synonyms: ascendant, ascensive |
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| (adjective) most powerful or important or influential | Synonyms: ascendant, dominating |
| (noun) someone from whom you are descended (but usually more remote than a grandparent) | Synonyms: ancestor, antecedent, ascendant, root |
| (noun) position or state of being dominant or in control | Synonyms: ascendant |
| ascent | (noun) the act of changing location in an upward direction | Synonyms: ascending, ascension, rise |
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| (noun) a movement upward; rise above the ground | Synonyms: ascension, rise, rising |
| (noun) an upward slope or grade (as in a road) | Synonyms: acclivity, climb, raise, rise, upgrade |
| ascot | (noun) a cravat with wide square ends; secured with an ornamental pin | - |
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| askant | (adjective) (used especially of glances) directed to one side with or as if with doubt or suspicion or envy | Synonyms: askance, asquint, sidelong, squint-eyed, squint, squinty |
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| aslant | (adjective) having an oblique or slanted direction | Synonyms: aslope, diagonal, slanted, slanting, sloped, sloping |
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| (adverb) at an oblique angle | Synonyms: athwart, obliquely |
| (adverb) over or across in a slanting direction | - |
| aspect | (noun) the feelings expressed on a person's face | Synonyms: expression, face, facial expression, look |
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| (noun) a characteristic to be considered | - |
| (noun) a distinct feature or element in a problem | Synonyms: facet |
| (noun) the visual percept of a region | Synonyms: panorama, prospect, scene, view, vista |
| (noun) the beginning or duration or completion or repetition of the action of a verb | - |
| asphalt | (noun) a dark bituminous substance found in natural beds and as residue from petroleum distillation; consists mainly of hydrocarbons | Synonyms: mineral pitch |
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| (noun) mixed asphalt and crushed gravel or sand; used especially for paving but also for roofing | - |
| (verb) cover with tar or asphalt | - |
| aspirant | (adjective) desiring or striving for recognition or advancement | Synonyms: aspiring, wishful |
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| (noun) an ambitious and aspiring young person | Synonyms: aspirer, hopeful, wannabe, wannabee |
| asquint | (adjective) (used especially of glances) directed to one side with or as if with doubt or suspicion or envy | Synonyms: askance, askant, sidelong, squint-eyed, squint, squinty |
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| assailant | (noun) someone who attacks | Synonyms: aggressor, assaulter, attacker |
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| assault | (noun) close fighting during the culmination of a military attack | - |
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| (noun) a threatened or attempted physical attack by someone who appears to be able to cause bodily harm if not stopped | - |
| (noun) the crime of forcing a person to submit to sexual intercourse against his or her will | Synonyms: rape, ravishment, violation |
| (verb) attack in speech or writing | Synonyms: assail, attack, lash out, round, snipe |
| (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 |
| assent | (noun) agreement with a statement or proposal to do something | Synonyms: acquiescence |
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| (verb) to agree or express agreement | Synonyms: accede, acquiesce |
| assentient | (adjective) expressing agreement or consent | Synonyms: assenting |
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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 |
| assessment | (noun) the act of judging or assessing a person or situation or event | Synonyms: judgement, judgment |
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| (noun) the market value set on assets | - |
| (noun) the classification of someone or something with respect to its worth | Synonyms: appraisal |
| (noun) an amount determined as payable | - |
| asset | (noun) a useful or valuable quality | Synonyms: plus |
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| assignment | (noun) a duty that you are assigned to perform (especially in the armed forces) | Synonyms: duty assignment |
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| (noun) the act of putting a person into a non-elective position | Synonyms: appointment, designation, naming |
| (noun) the act of distributing something to designated places or persons | Synonyms: assigning |
| (noun) an undertaking that you have been assigned to do (as by an instructor) | - |
| (noun) the instrument by which a claim or right or interest or property is transferred from one person to another | - |
| (noun) (law) a transfer of property by deed of conveyance | Synonyms: grant |
| assist | (noun) (sports) the act of enabling another player to make a good play | - |
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| (noun) the activity of contributing to the fulfillment of a need or furtherance of an effort or purpose | Synonyms: aid, assistance, help |
| (verb) act as an assistant in a subordinate or supportive function | - |
| (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 |
| assistant | (adjective) of or relating to a person who is subordinate to another | Synonyms: adjunct |
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| (noun) a person who contributes to the fulfillment of a need or furtherance of an effort or purpose | Synonyms: help, helper, supporter |
| assonant | (adjective) having the same vowel sound occurring with different consonants in successive words or stressed syllables | - |
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| (adjective) having the same sound (especially the same vowel sound) occurring in successive stressed syllables | - |
| 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 |
| assortment | (noun) the act of distributing things into classes or categories of the same type | Synonyms: categorisation, categorization, classification, compartmentalisation, compartmentalization |
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| (noun) a collection containing a variety of sorts of things | Synonyms: miscellanea, miscellany, mixed bag, mixture, motley, potpourri, salmagundi, smorgasbord, variety |
| assuagement | (noun) the feeling that comes when something burdensome is removed or reduced | Synonyms: alleviation, relief |
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| assurgent | (adjective) growing or extending upward | - |
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| (adjective) rising from the sea | - |
| astonishment | (noun) the feeling that accompanies something extremely surprising | Synonyms: amazement |
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| astringent | (adjective) tending to draw together or constrict soft organic tissue | - |
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| (adjective) sour or bitter in taste | Synonyms: acerb, acerbic |
| (noun) a drug that causes contraction of body tissues and canals | Synonyms: astringent drug, styptic |
| astrologist | (noun) someone who predicts the future by the positions of the planets and sun and Moon | Synonyms: astrologer |
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| astronaut | (noun) a person trained to travel in a spacecraft | Synonyms: cosmonaut, spaceman |
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| astrophysicist | (noun) an astronomer who studies the physical properties of celestial bodies | - |
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| at | (noun) 100 at equal 1 kip in Laos | - |
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| atavist | (noun) an organism that has the characteristics of a more primitive type of that organism | Synonyms: throwback |
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| atheist | (adjective) related to or characterized by or given to atheism | Synonyms: atheistic, atheistical |
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| (noun) someone who does not believe in the existence of a god | - |
| athirst | (adjective) (usually followed by `for') extremely desirous | Synonyms: hungry, thirsty |
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| athwart | (adverb) at an oblique angle | Synonyms: aslant, obliquely |
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| (adverb) at right angles to the center line of a ship | - |
| atilt | (adjective) departing or being caused to depart from the true vertical or horizontal | Synonyms: canted, leaning, tilted, tipped |
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| atonement | (noun) the act of atoning for sin or wrongdoing (especially appeasing a deity) | Synonyms: expiation, propitiation |
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| (noun) compensation for a wrong | Synonyms: expiation, satisfaction |
| attachment | (noun) the act of fastening things together | Synonyms: fastening |
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| (noun) the act of attaching or affixing something | Synonyms: affixation |
| (noun) faithful support for a cause or political party or religion | Synonyms: adherence, adhesion |
| (noun) a supplementary part or accessory | - |
| (noun) a connection that fastens things together | Synonyms: bond |
| (noun) a writ authorizing the seizure of property that may be needed for the payment of a judgment in a judicial proceeding | - |
| (noun) a feeling of affection for a person or an institution | Synonyms: fond regard |
| attainment | (noun) the act of achieving an aim | - |
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| (noun) arrival at a new stage | - |
| (noun) an ability that has been acquired by training | Synonyms: accomplishment, acquirement, acquisition, skill |
| attaint | (verb) condemn by attainder | - |
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| (verb) bring shame or dishonor upon | Synonyms: disgrace, dishonor, dishonour, shame |
| attempt | (noun) earnest and conscientious activity intended to do or accomplish something | Synonyms: effort, endeavor, endeavour, try |
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| (noun) the act of attacking | Synonyms: attack |
| (verb) enter upon an activity or enterprise | Synonyms: set about, undertake |
| (verb) make an effort or attempt | Synonyms: assay, essay, seek, try |
| attendant | (adjective) being present (at a meeting or event, etc.) | - |
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| (adjective) occurring with or following as a consequence | Synonyms: accompanying, collateral, concomitant, consequent, ensuant, incidental, resultant, sequent |
| (noun) an event or situation that happens at the same time as or in connection with another | Synonyms: accompaniment, co-occurrence, concomitant |
| (noun) someone who waits on or tends to or attends to the needs of another | Synonyms: attender, tender |
| (noun) a person who is present and participates in a meeting | Synonyms: attendee, attender, meeter |
| 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 | - |
| attestant | (noun) (law) a person who attests to the genuineness of a document or signature by adding their own signature | Synonyms: attestator, attestor, witness |
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| (noun) someone who affirms or vouches for the correctness or truth or genuineness of something | Synonyms: attester |
| attract | (verb) direct toward itself or oneself by means of some psychological power or physical attributes | Synonyms: draw, draw in, pull, pull in |
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| (verb) exert a force on (a body) causing it to approach or prevent it from moving away | - |
| (verb) be attractive to | Synonyms: appeal |
| audit | (noun) a methodical examination or review of a condition or situation | - |
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| (noun) an inspection of the accounting procedures and records by a trained accountant or CPA | Synonyms: audited account |
| (verb) attend academic courses without getting credit | - |
| (verb) examine carefully for accuracy with the intent of verification | Synonyms: inspect, scrutinise, scrutinize |
| aught | (noun) a quantity of no importance; thing (object:), singular, negative pronoun; pronoun, thing, singular; quantifier: negative existential | Synonyms: cipher, cypher, goose egg, nada, naught, nil, nix, nothing, null, zero, zilch, zip, zippo |
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| augment | (verb) grow or intensify | - |
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| (verb) enlarge or increase | - |
| august | (adjective) profoundly honored | Synonyms: revered, venerable |
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| (adjective) of or befitting a lord | Synonyms: grand, lordly |
| auklet | (noun) any of several small auks of the northern Pacific coasts | - |
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| aunt | (noun) the sister of your father or mother; the wife of your uncle | Synonyms: auntie, aunty |
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| autocorrect | (noun) a system for automatically correcting text | - |
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| autocrat | (noun) a cruel and oppressive dictator | Synonyms: despot, tyrant |
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| autodidact | (noun) a person who has taught himself | - |
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| autofluorescent | (adjective) emitting light via self-induced fluorescence | - |
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| autograft | (noun) tissue that is taken from one site and grafted to another site on the same person | Synonyms: autoplasty |
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| automat | (noun) a cafeteria where food is served from machines | - |
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| (noun) a vending machine from which you can get food | - |
| automobilist | (noun) someone who drives (or travels in) an automobile | Synonyms: motorist |
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| autopilot | (noun) a navigational device that automatically keeps ships or planes or spacecraft on a steady course | Synonyms: automatic pilot, robot pilot |
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| (noun) a cognitive state in which you act without self-awareness | Synonyms: automatic pilot |
| avadavat | (noun) red Asian weaverbirds often kept as cage birds | Synonyms: amadavat |
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| averment | (noun) a declaration that is made emphatically (as if no supporting evidence were necessary) | Synonyms: assertion, asseveration |
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| avert | (verb) turn away or aside | Synonyms: turn away |
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| (verb) prevent the occurrence of; prevent from happening; to protect from or to keep away anything undesirable; to ward off | Synonyms: avoid, debar, deflect, fend off, forefend, forfend, head off, obviate, stave off, ward off |
| avirulent | (adjective) not virulent; unable to produce disease | - |
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| avocet | (noun) long-legged web-footed black-and-white shorebird with slender upward-curving bill | - |
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| avouchment | (noun) a statement asserting the existence or the truth of something | Synonyms: affirmation, avowal |
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| await | (verb) look forward to the probable occurrence of | Synonyms: expect, look, wait |
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| awlwort | (noun) small aquatic plant having tufted awl-shaped leaves in a basal rosette and minute white flowers; circumboreal | Synonyms: Subularia aquatica |
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| babbitt | (noun) an alloy of tin with some copper and antimony; a lining for bearings that reduces friction | Synonyms: Babbitt metal |
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| (verb) line with a Babbitt metal | - |
| 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 |
| baccarat | (noun) a card game played in casinos in which two or more punters gamble against the banker; the player wins who holds 2 or 3 cards that total closest to nine | Synonyms: chemin de fer |
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| bacchant | (noun) (classical mythology) a priest or votary of Bacchus | - |
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| (noun) a drunken reveller; a devotee of Bacchus | Synonyms: bacchanal |
| (noun) someone who engages in drinking bouts | Synonyms: bacchanal, drunken reveler, drunken reveller |
| backbeat | (noun) a loud steady beat | - |
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| backblast | (noun) backfire from a recoilless weapon | Synonyms: back-blast |
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| backchat | (noun) light teasing repartee | Synonyms: banter, give-and-take, raillery |
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| backmost | (adjective) located farthest to the rear | Synonyms: hindermost, hindmost, rearmost |
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| backrest | (noun) a support that you can lean against while sitting | Synonyms: back |
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| backseat | (noun) a seat at the back of a vehicle (especially the seat at the back of an automobile) | - |
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| (noun) a secondary or inferior position or status | - |
| backswept | (adjective) used of hair | Synonyms: sweptback |
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| bacteriologist | (noun) a biologist who studies bacteria | - |
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