| behaviourism | (noun) an approach to psychology that emphasizes observable measurable behavior | Synonyms: behaviorism, behavioristic psychology, behaviouristic psychology |
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| behaviourist | (noun) a psychologist who subscribes to behaviorism | Synonyms: behaviorist |
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| believability | (noun) the quality of being believable or trustworthy | Synonyms: credibility, credibleness |
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| believer | (noun) a person who has religious faith | Synonyms: worshiper, worshipper |
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| (noun) a supporter who accepts something as true | Synonyms: truster |
| believing | (noun) the cognitive process that leads to convictions | - |
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| beloved | (noun) a beloved person; used as terms of endearment | Synonyms: baby, darling, dear, dearest, dearie, deary, honey, love, sweetheart, sweetie |
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| belvedere | (noun) a gazebo sited to command a fine view | - |
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| (noun) densely branched Eurasian plant; foliage turns purple-red in autumn | Synonyms: Bassia scoparia, burning bush, fire-bush, fire bush, Kochia scoparia, summer cypress |
| benevolence | (noun) an act intending or showing kindness and good will | Synonyms: benefaction |
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| (noun) an inclination to do kind or charitable acts | - |
| (noun) disposition to do good | - |
| bereaved | (noun) a person who has suffered the death of someone they loved | Synonyms: bereaved person |
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| bereavement | (noun) state of sorrow over the death or departure of a loved one | Synonyms: mourning |
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| bevatron | (noun) a cyclotron that accelerates protons up to several billion electron volts | - |
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| bevel | (noun) a hand tool consisting of two rules that are hinged together so you can draw or measure angles of any size | Synonyms: bevel square |
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| (noun) two surfaces meeting at an angle different from 90 degrees | Synonyms: cant, chamfer |
| beverage | (noun) any liquid suitable for drinking | Synonyms: drink, drinkable, potable |
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| bevy | (noun) a flock of birds (especially when gathered close together on the ground) | - |
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| (noun) a large gathering of people of a particular type | - |
| biodiversity | (noun) the diversity of plant and animal life in a particular habitat (or in the world as a whole) | - |
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| bioflavinoid | (noun) a vitamin that maintains the resistance of cell and capillary walls to permeation | Synonyms: citrin, vitamin P |
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| bivalve | (noun) marine or freshwater mollusks having a soft body with platelike gills enclosed within two shells hinged together | Synonyms: lamellibranch, pelecypod |
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| bivouac | (noun) temporary living quarters specially built by the army for soldiers | Synonyms: camp, cantonment, encampment |
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| (noun) a site where people on holiday can pitch a tent | Synonyms: campground, camping area, camping ground, camping site, campsite, encampment |
| bivouacking | (noun) the act of encamping and living in tents in a camp | Synonyms: camping, encampment, tenting |
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| bolivar | (noun) the basic unit of money in Venezuela; equal to 100 centimos | - |
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| bolivia | (noun) a form of canasta in which sequences can be melded | - |
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| boliviano | (noun) the basic unit of money in Bolivia; equal to 100 centavos | - |
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| bonavist | (noun) perennial twining vine of Old World tropics having trifoliate leaves and racemes of fragrant purple pea-like flowers followed by maroon pods of edible seeds; grown as an ornamental and as a vegetable on the Indian subcontinent; sometimes placed in genus Dolichos | Synonyms: Dolichos lablab, Egyptian bean, hyacinth bean, Indian bean, Lablab purpureus |
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| booklover | (noun) someone who loves (and usually collects) books | Synonyms: bibliophile, book lover |
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| bougainvillea | (noun) any of several South American ornamental woody vines of the genus Bougainvillea having brilliant red or purple flower bracts; widely grown in warm regions | - |
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| boulevard | (noun) a wide street or thoroughfare | Synonyms: avenue |
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| boulevardier | (noun) a visitor of a city boulevard (especially in Paris) | - |
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| bovid | (noun) hollow-horned ruminants | - |
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| bovine | (noun) any of various members of the genus Bos | - |
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| brainwave | (noun) the clear (and often sudden) understanding of a complex situation | Synonyms: brainstorm, insight |
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| (noun) (neurophysiology) rapid fluctuations of voltage between parts of the cerebral cortex that are detectable with an electroencephalograph | Synonyms: brain wave, cortical potential |
| brassavola | (noun) any of various tropical American orchids with usually solitary fleshy leaves and showy white to green nocturnally fragrant blossoms solitary or in racemes of up to 7 | - |
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| bravado | (noun) a swaggering show of courage | Synonyms: bluster |
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| brave | (noun) people who are brave | - |
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| (noun) a North American Indian warrior | - |
| braveness | (noun) a quality of spirit that enables you to face danger or pain without showing fear | Synonyms: bravery, courage, courageousness |
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| bravery | (noun) a quality of spirit that enables you to face danger or pain without showing fear | Synonyms: braveness, courage, courageousness |
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| (noun) feeling no fear | Synonyms: fearlessness |
| bravo | (noun) a cry of approval as from an audience at the end of great performance | - |
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| (noun) a murderer (especially one who kills a prominent political figure) who kills by a surprise attack and often is hired to do the deed | Synonyms: assassin, assassinator |
| bravura | (noun) brilliant and showy technical skill | - |
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| breve | (noun) a diacritical mark (U-shaped) placed over a vowel to indicate a short sound | - |
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| brevet | (noun) a document entitling a commissioned officer to hold a higher rank temporarily (but without higher pay) | - |
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| breviary | (noun) (Roman Catholic Church) a book of prayers to be recited daily by certain priests and members of religious orders | - |
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| brevity | (noun) the attribute of being brief or fleeting | Synonyms: briefness, transience |
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| (noun) the use of brief expressions | - |
| bunyavirus | (noun) an animal virus belonging to the family Bunyaviridae; can be used as a bioweapon | - |
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| burgrave | (noun) the military governor of a German town in the 12th and 13th centuries | - |
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| (noun) a nobleman ruling a German castle and surrounding grounds by hereditary right | - |
| cabdriver | (noun) someone who drives a taxi for a living | Synonyms: cabby, cabman, hack-driver, hack driver, livery driver, taxidriver, taximan |
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| cadaver | (noun) the dead body of a human being | Synonyms: clay, corpse, remains, stiff |
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| cadaverine | (noun) a colorless toxic ptomaine with an unpleasant odor formed during the putrefaction of animal tissue | - |
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| calvaria | (noun) the dome of the skull | Synonyms: skullcap |
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| calvary | (noun) any experience that causes intense suffering | Synonyms: martyrdom |
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| calving | (noun) giving birth to a calf | - |
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| canavanine | (noun) an amino acid found in the jack bean | - |
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| cantilever | (noun) projecting horizontal beam fixed at one end only | - |
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| canvas | (noun) a heavy, closely woven fabric | Synonyms: canvass |
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| (noun) the mat that forms the floor of the ring in which boxers or professional wrestlers compete | Synonyms: canvass |
| (noun) a tent made of canvas fabric | Synonyms: canvas tent, canvass |
| (noun) a large piece of fabric (usually canvas fabric) by means of which wind is used to propel a sailing vessel | Synonyms: canvass, sail, sheet |
| (noun) an oil painting on canvas fabric | Synonyms: canvass |
| (noun) the setting for a narrative or fictional or dramatic account | Synonyms: canvass |
| canvasback | (noun) North American wild duck valued for sport and food | Synonyms: Aythya valisineria, canvasback duck |
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| canvass | (noun) a heavy, closely woven fabric | Synonyms: canvas |
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| (noun) the mat that forms the floor of the ring in which boxers or professional wrestlers compete | Synonyms: canvas |
| (noun) a tent made of canvas fabric | Synonyms: canvas, canvas tent |
| (noun) a large piece of fabric (usually canvas fabric) by means of which wind is used to propel a sailing vessel | Synonyms: canvas, sail, sheet |
| (noun) an oil painting on canvas fabric | Synonyms: canvas |
| (noun) an inquiry into public opinion conducted by interviewing a random sample of people | Synonyms: opinion poll, poll, public opinion poll |
| (noun) the setting for a narrative or fictional or dramatic account | Synonyms: canvas |
| canvasser | (noun) someone who conducts surveys of public opinion | Synonyms: headcounter, poll taker, pollster |
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| (noun) someone who examines votes at an election | Synonyms: scrutineer |
| (noun) a petitioner who solicits contributions or trade or votes | Synonyms: solicitor |
| (noun) a person who takes or counts votes | - |
| canvassing | (noun) persuasion of voters in a political campaign | Synonyms: bell ringing, electioneering |
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| captivation | (noun) a feeling of great liking for something wonderful and unusual | Synonyms: enchantment, enthrallment, fascination |
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| (noun) the state of being intensely interested (as by awe or terror) | Synonyms: fascination |
| captive | (noun) an animal that is confined | - |
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| (noun) a person who is confined; especially a prisoner of war | Synonyms: prisoner |
| (noun) a person held in the grip of a strong emotion or passion | - |
| captivity | (noun) the state of being a slave | Synonyms: enslavement |
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| (noun) the state of being imprisoned | Synonyms: immurement, imprisonment, incarceration |
| caravan | (noun) a camper equipped with living quarters | Synonyms: van |
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| (noun) a procession (of wagons or mules or camels) traveling together in single file | Synonyms: train, wagon train |
| caravanning | (noun) the practice of taking holidays in a caravan | - |
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| caravansary | (noun) an inn in some eastern countries with a large courtyard that provides accommodation for caravans | Synonyms: caravan inn, caravanserai, khan |
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| caravanserai | (noun) an inn in some eastern countries with a large courtyard that provides accommodation for caravans | Synonyms: caravan inn, caravansary, khan |
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| caregiver | (noun) a person who is responsible for attending to the needs of a child or dependent adult | - |
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| (noun) a person who helps in identifying or preventing or treating illness or disability | Synonyms: health care provider, health professional, PCP, primary care provider |
| carminative | (noun) medication that prevents the formation of gas in the alimentary tract or eases its passing | - |
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| carnival | (noun) a festival marked by merrymaking and processions | - |
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| (noun) a traveling show; having sideshows and rides and games of skill etc. | Synonyms: fair, funfair |
| (noun) a frenetic disorganized (and often comic) disturbance suggestive of a large public entertainment | Synonyms: circus |
| carnivore | (noun) a terrestrial or aquatic flesh-eating mammal | - |
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| (noun) any animal that feeds on flesh | - |
| carnivorousness | (noun) The quality of being an animal that eats meat as the main part of its diet. | Synonyms: zoophagy |
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| carvedilol | (noun) beta blocker that can reduce the progression of heart failure in individuals whose disease is not advanced | - |
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| carver | (noun) an artist who creates sculptures | Synonyms: sculptor, sculpturer, statue maker |
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| (noun) someone who carves the meat | Synonyms: cutter |
| (noun) makes decorative wooden panels | Synonyms: woodcarver |
| carving | (noun) creating figures or designs in three dimensions | Synonyms: sculpture |
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| (noun) removing parts from hard material to create a desired pattern or shape | Synonyms: cutting |
| (noun) a sculpture created by removing material (as wood or ivory or stone) in order to create a desired shape | - |
| casava | (noun) any of several plants of the genus Manihot having fleshy roots yielding a nutritious starch | Synonyms: cassava |
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| cassava | (noun) any of several plants of the genus Manihot having fleshy roots yielding a nutritious starch | Synonyms: casava |
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| (noun) cassava root eaten as a staple food after drying and leaching; source of tapioca | Synonyms: manioc |
| (noun) a starch made by leaching and drying the root of the cassava plant; the source of tapioca; a staple food in the tropics | Synonyms: cassava starch, manioc, manioca |
| cavalcade | (noun) a procession of people traveling on horseback | - |
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| cavalier | (noun) a gallant or courtly gentleman | Synonyms: chevalier |
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| cavalla | (noun) large mackerel with long pointed snout; important food and game fish of the eastern Atlantic coast southward to Brazil | Synonyms: cero, king mackerel, Scomberomorus cavalla |
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| cavalry | (noun) a highly mobile army unit | - |
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| (noun) troops trained to fight on horseback | Synonyms: horse, horse cavalry |
| cavalryman | (noun) a soldier mounted on horseback | Synonyms: trooper |
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| (noun) a soldier in a motorized army unit | Synonyms: trooper |
| cave | (noun) a geological formation consisting of an underground enclosure with access from the surface of the ground or from the sea | - |
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| caveat | (noun) a warning against certain acts | Synonyms: caution |
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| (noun) (law) a formal notice filed with a court or officer to suspend a proceeding until filer is given a hearing | - |
| caveman | (noun) someone who lives in a cave | Synonyms: cave dweller, cave man, troglodyte |
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| cavern | (noun) a large cave or a large chamber in a cave | - |
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| (noun) any large dark enclosed space | - |
| cavetto | (noun) a concave molding shaped like a quarter circle in cross section | - |
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| caviar | (noun) salted roe of sturgeon or other large fish; usually served as an hors d'oeuvre | Synonyms: caviare |
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| caviare | (noun) salted roe of sturgeon or other large fish; usually served as an hors d'oeuvre | Synonyms: caviar |
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| cavil | (noun) an evasion of the point of an argument by raising irrelevant distinctions or objections | Synonyms: quibble, quiddity |
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| caviler | (noun) a disputant who quibbles; someone who raises annoying petty objections | Synonyms: caviller, pettifogger, quibbler |
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| caviller | (noun) a disputant who quibbles; someone who raises annoying petty objections | Synonyms: caviler, pettifogger, quibbler |
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| cavity | (noun) (anatomy) a natural hollow or sinus within the body | Synonyms: bodily cavity, cavum |
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| (noun) a sizeable hole (usually in the ground) | Synonyms: pit |
| (noun) soft decayed area in a tooth; progressive decay can lead to the death of a tooth | Synonyms: caries, dental caries, tooth decay |
| (noun) space that is surrounded by something | Synonyms: enclosed space |
| cavum | (noun) (anatomy) a natural hollow or sinus within the body | Synonyms: bodily cavity, cavity |
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| cavy | (noun) short-tailed rough-haired South American rodent | - |
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| centavo | (noun) a fractional monetary unit of several countries: El Salvador and Sao Tome and Principe and Brazil and Argentina and Bolivia and Colombia and Cuba and the Dominican Republic and Ecuador and El Salvador and Guatemala and Honduras and Mexico and Nicaragua and Peru and the Philippines and Portugal | - |
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| cerivastatin | (noun) an oral drug (trade name Baycol) to reduce blood cholesterol levels | Synonyms: Baycol |
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| cervicitis | (noun) inflammation of the uterine cervix | - |
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| cervid | (noun) distinguished from Bovidae by the male's having solid deciduous antlers | Synonyms: deer |
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| cervix | (noun) the part of an organism (human or animal) that connects the head to the rest of the body | Synonyms: neck |
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| (noun) necklike opening to the uterus | Synonyms: cervix uteri, uterine cervix |
| changeover | (noun) an event that results in a transformation | Synonyms: conversion, transition |
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| charivari | (noun) a noisy mock serenade (made by banging pans and kettles) to a newly married couple | Synonyms: belling, callathump, callithump, chivaree, shivaree |
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| chauvinism | (noun) activity indicative of belief in the superiority of men over women | Synonyms: antifeminism, male chauvinism |
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| (noun) fanatical patriotism | Synonyms: jingoism, superpatriotism, ultranationalism |
| chauvinist | (noun) an extreme bellicose nationalist | Synonyms: flag-waver, hundred-percenter, jingo, jingoist, patrioteer |
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| (noun) a person with a prejudiced belief in the superiority of his or her own kind | - |