| agamete | (noun) an asexual reproductive cell | - |
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| airframe | (noun) the framework and covering of an airplane or rocket (excluding the engines) | - |
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| ameba | (noun) naked freshwater or marine or parasitic protozoa that form temporary pseudopods for feeding and locomotion | Synonyms: amoeba |
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| amebiasis | (noun) infection by a disease-causing ameba | Synonyms: amebiosis, amoebiasis, amoebiosis |
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| amebiosis | (noun) infection by a disease-causing ameba | Synonyms: amebiasis, amoebiasis, amoebiosis |
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| ameer | (noun) an independent ruler or chieftain (especially in Africa or Arabia) | Synonyms: amir, emeer, emir |
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| amelia | (noun) congenital absence of an arm or leg | - |
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| amelioration | (noun) the act of relieving ills and changing for the better | Synonyms: betterment, melioration |
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| ameloblast | (noun) a cell from which tooth enamel develops | - |
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| amelogenesis | (noun) the developmental process of forming tooth enamel | - |
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| amenability | (noun) the trait of being cooperative | Synonyms: amenableness, cooperativeness |
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| amenableness | (noun) the trait of being cooperative | Synonyms: amenability, cooperativeness |
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| amendment | (noun) the act of amending or correcting | - |
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| (noun) a statement that is added to or revises or improves a proposal or document (a bill or constitution etc.) | - |
| amends | (noun) something done or paid in expiation of a wrong | Synonyms: reparation |
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| (noun) a sum of money paid in compensation for loss or injury | Synonyms: damages, indemnification, indemnity, redress, restitution |
| amenia | (noun) absence or suppression of normal menstrual flow | Synonyms: amenorrhea, amenorrhoea |
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| amenities | (noun) things that make you comfortable and at ease | Synonyms: comforts, conveniences, creature comforts |
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| amenity | (noun) pleasantness resulting from agreeable conditions | Synonyms: agreeableness |
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| amenorrhea | (noun) absence or suppression of normal menstrual flow | Synonyms: amenia, amenorrhoea |
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| amenorrhoea | (noun) absence or suppression of normal menstrual flow | Synonyms: amenia, amenorrhea |
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| ament | (noun) a cylindrical spikelike inflorescence | Synonyms: catkin |
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| amentia | (noun) extreme mental retardation | Synonyms: idiocy |
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| amercement | (noun) money extracted as a penalty | Synonyms: fine, mulct |
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| americium | (noun) a radioactive transuranic metallic element; discovered by bombarding uranium with helium atoms | Synonyms: Am, atomic number 95 |
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| amethopterin | (noun) toxic antimetabolite that limits cellular reproduction by acting as an antagonist to folic acid; used to treat certain cancers and psoriasis and rheumatoid arthritis | Synonyms: methotrexate, methotrexate sodium |
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| amethyst | (noun) a transparent purple variety of quartz; used as a gemstone | - |
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| ametria | (noun) congenital absence of the uterus | - |
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| ametropia | (noun) (ophthalmology) faulty refraction of light rays in the eye as in astigmatism or myopia | - |
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| anisogamete | (noun) either of a pair of unlike gametes especially those unlike in size | - |
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| arame | (noun) an edible seaweed with a mild flavor | - |
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| arbitrament | (noun) the act of deciding as an arbiter; giving authoritative judgment | Synonyms: arbitration, arbitrement |
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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 | - |
| armamentarium | (noun) the collection of equipment and methods used in the practice of medicine | - |
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| aspartame | (noun) an artificial sweetener made from aspartic acid; used as a calorie-free sweetener | - |
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| ballgame | (noun) a field game played with a ball (especially baseball) | Synonyms: ball game |
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| (noun) a particular situation that is radically different from the preceding situation | Synonyms: new ballgame |
| bechamel | (noun) milk thickened with a butter and flour roux | Synonyms: bechamel sauce, white sauce |
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| bedframe | (noun) the framework of a bed | Synonyms: bedstead |
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| beldame | (noun) a woman of advanced age | Synonyms: beldam |
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| (noun) an ugly evil-looking old woman | Synonyms: beldam, crone, hag, witch |
| blame | (noun) a reproach for some lapse or misdeed | Synonyms: rap |
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| (noun) an accusation that you are responsible for some lapse or misdeed | Synonyms: incrimination, inculpation |
| blamelessness | (noun) a state of innocence | Synonyms: guiltlessness, inculpability, inculpableness |
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| blameworthiness | (noun) a state of guilt | Synonyms: culpability, culpableness |
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| byname | (noun) a familiar name for a person (often a shortened version of a person's given name) | Synonyms: cognomen, moniker, nickname, sobriquet, soubriquet |
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| camel | (noun) cud-chewing mammal used as a draft or saddle animal in desert regions | - |
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| camelhair | (noun) a soft tan cloth made with the hair of a camel | Synonyms: camel's hair |
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| camelia | (noun) any of several shrubs or small evergreen trees having solitary white or pink or reddish flowers | Synonyms: camellia |
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| camellia | (noun) any of several shrubs or small evergreen trees having solitary white or pink or reddish flowers | Synonyms: camelia |
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| camelopard | (noun) tallest living quadruped; having a spotted coat and small horns and very long neck and legs; of savannahs of tropical Africa | Synonyms: Giraffa camelopardalis, giraffe |
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| camelpox | (noun) a viral disease of camels closely related to smallpox | - |
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| cameo | (noun) engraving or carving in low relief on a stone (as in a brooch or ring) | - |
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| camera | (noun) equipment for taking photographs (usually consisting of a lightproof box with a lens at one end and light-sensitive film at the other) | Synonyms: photographic camera |
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| (noun) television equipment consisting of a lens system that focuses an image on a photosensitive mosaic that is scanned by an electron beam | Synonyms: television camera, tv camera |
| cameraman | (noun) a photographer who operates a movie camera | Synonyms: camera operator, cinematographer |
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| caramel | (noun) a medium to dark tan color | Synonyms: buff, caramel brown, raw sienna, yellowish brown |
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| (noun) firm chewy candy made from caramelized sugar and butter and milk | - |
| (noun) burnt sugar; used to color and flavor food | Synonyms: caramelized sugar |
| catamenia | (noun) the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause | Synonyms: flow, menses, menstruation, menstruum, period |
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| chameleon | (noun) lizard of Africa and Madagascar able to change skin color and having a projectile tongue | Synonyms: chamaeleon |
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| (noun) a changeable or inconstant person | - |
| chordamesoderm | (noun) the area of mesoderm that forms the notochord | Synonyms: chordomesoderm |
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| cinnamene | (noun) a colorless oily liquid; the monomer for polystyrene | Synonyms: phenylethylene, styrene, vinylbenzene |
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| creamer | (noun) a small pitcher for serving cream | Synonyms: cream pitcher |
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| creamery | (noun) a workplace where dairy products (butter and cheese etc.) are produced or sold | - |
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| cyclamen | (noun) Mediterranean plant widely cultivated as a houseplant for its showy dark green leaves splotched with silver and nodding white or pink to reddish flowers with reflexed petals | Synonyms: Cyclamen purpurascens |
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| dagame | (noun) source of a tough elastic wood | Synonyms: Calycophyllum candidissimum, lemonwood tree |
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| dame | (noun) informal terms for a (young) woman | Synonyms: bird, chick, doll, skirt, wench |
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| (noun) a woman of refinement | Synonyms: gentlewoman, lady, ma'am, madam |
| daydreamer | (noun) someone who indulges in idle or absentminded daydreaming | Synonyms: woolgatherer |
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| decameter | (noun) a metric unit of length equal to ten meters | Synonyms: dam, decametre, dekameter, dekametre, dkm |
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| decametre | (noun) a metric unit of length equal to ten meters | Synonyms: dam, decameter, dekameter, dekametre, dkm |
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| defamer | (noun) one who attacks the reputation of another by slander or libel | Synonyms: backbiter, libeler, maligner, slanderer, traducer, vilifier |
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| dekameter | (noun) a metric unit of length equal to ten meters | Synonyms: dam, decameter, decametre, dekametre, dkm |
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| dekametre | (noun) a metric unit of length equal to ten meters | Synonyms: dam, decameter, decametre, dekameter, dkm |
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| dexamethasone | (noun) a corticosteroid drug (trade names Decadron or Dexamethasone Intensol or Dexone or Hexadrol or Oradexon) used to treat allergies or inflammation | Synonyms: Decadron, Dexamethasone Intensol, Dexone, Hexadrol, Oradexon |
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| diameter | (noun) the length of a straight line passing through the center of a circle and connecting two points on the circumference | Synonyms: diam |
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| (noun) a straight line connecting the center of a circle with two points on its perimeter (or the center of a sphere with two points on its surface) | - |
| disarmament | (noun) act of reducing or depriving of arms | Synonyms: disarming |
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| doorframe | (noun) the frame that supports a door | Synonyms: doorcase |
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| dreamer | (noun) a person who escapes into a world of fantasy | Synonyms: escapist, wishful thinker |
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| (noun) someone guided more by ideals than by practical considerations | Synonyms: idealist |
| (noun) someone who is dreaming | - |
| duramen | (noun) the older inactive central wood of a tree or woody plant; usually darker and denser than the surrounding sapwood | Synonyms: heartwood |
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| enamel | (noun) any smooth glossy coating that resembles ceramic glaze | - |
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| (noun) a paint that dries to a hard glossy finish | - |
| (noun) hard white substance covering the crown of a tooth | Synonyms: tooth enamel |
| (noun) a colored glassy compound (opaque or partially opaque) that is fused to the surface of metal or glass or pottery for decoration or protection | - |
| enamelware | (noun) cooking utensil of enameled iron | - |
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| endameba | (noun) any ameba of the genus Endamoeba | - |
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| endgame | (noun) the final stages of a chess game after most of the pieces have been removed from the board | Synonyms: end game |
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| (noun) the final stages of an extended process of negotiation | Synonyms: end game |
| examen | (noun) a detailed inspection of your conscience (as done daily by Jesuits) | Synonyms: examination |
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| (noun) a critical study (as of a writer's work) | - |
| fame | (noun) the state or quality of being widely honored and acclaimed | Synonyms: celebrity, renown |
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| (noun) favorable public reputation | - |
| filament | (noun) a thin wire (usually tungsten) that is heated white hot by the passage of an electric current | - |
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| (noun) a threadlike structure (as a chainlike series of cells) | Synonyms: filum |
| (noun) the stalk of a stamen | - |
| (noun) a very slender natural or synthetic fiber | Synonyms: fibril, strand |
| filename | (noun) (computer science) the name given to a computer file in order to distinguish it from other files; may contain an extension that indicates the type of file | Synonyms: computer file name, computer filename, file name |
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| firmament | (noun) the apparent surface of the imaginary sphere on which celestial bodies appear to be projected | Synonyms: celestial sphere, empyrean, heavens, sphere, vault of heaven, welkin |
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| flame | (noun) the process of combustion of inflammable materials producing heat and light and (often) smoke | Synonyms: fire, flaming |
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| flamefish | (noun) a cardinalfish found in tropical Atlantic coastal waters | Synonyms: Apogon maculatus, flame fish |
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| flameflower | (noun) plant with fleshy roots and erect stems with narrow succulent leaves and one reddish-orange flower in each upper leaf axil; southwestern United States; Indians once cooked the fleshy roots | Synonyms: flame-flower, flame flower, Talinum aurantiacum |
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| (noun) a plant of the genus Kniphofia having long grasslike leaves and tall scapes of red or yellow drooping flowers | Synonyms: flame-flower, flame flower, kniphofia, tritoma |
| flamen | (noun) a priest who served a particular deity in ancient Rome | - |
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| flamenco | (noun) a style of dancing characteristic of the Andalusian Gypsies; vigorous and rhythmic with clapping and stamping of feet | Synonyms: gypsy dancing |
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| (noun) guitar music composed for dancing the flamenco | - |
| flamethrower | (noun) a weapon that squirts ignited fuel for several yards | - |
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| foramen | (noun) a natural opening or perforation through a bone or a membranous structure | Synonyms: hiatus |
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| forename | (noun) the name that precedes the surname | Synonyms: first name, given name |
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| frame | (noun) one of the ten divisions into which bowling is divided | - |
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| (noun) a framework that supports and protects a picture or a mirror | Synonyms: framing |
| (noun) the internal supporting structure that gives an artifact its shape | Synonyms: skeletal frame, skeleton, underframe |
| (noun) the framework for a pair of eyeglasses | - |
| (noun) a single one of a series of still transparent pictures forming a cinema, television or video film | - |
| (noun) a structure supporting or containing something | Synonyms: framework |
| (noun) the hard structure (bones and cartilages) that provides a frame for the body of an animal | Synonyms: skeletal system, skeleton, systema skeletale |
| (noun) alternative names for the body of a human being | Synonyms: anatomy, bod, build, chassis, figure, flesh, form, human body, material body, physical body, physique, shape, soma |
| (noun) a system of assumptions and standards that sanction behavior and give it meaning | Synonyms: frame of reference |
| (noun) a single drawing in a comic strip | - |
| (noun) an application that divides the user's display into two or more windows that can be scrolled independently | - |
| (noun) (baseball) one of nine divisions of play during which each team has a turn at bat | Synonyms: inning |
| framer | (noun) someone who writes a new law or plan | - |
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| (noun) someone who makes frames (as for pictures) | - |
| framework | (noun) a structure supporting or containing something | Synonyms: frame |
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| (noun) the underlying structure | Synonyms: fabric |
| (noun) a hypothetical description of a complex entity or process | Synonyms: model, theoretical account |
| fundament | (noun) lowest support of a structure | Synonyms: base, foot, foundation, groundwork, substructure, understructure |
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| (noun) the fleshy part of the human body that you sit on | Synonyms: arse, ass, backside, behind, bottom, bum, buns, butt, buttocks, can, derriere, fanny, hind end, hindquarters, keister, nates, posterior, prat, rear, rear end, rump, seat, stern, tail, tail end, tooshie, tush |
| (noun) the fundamental assumptions from which something is begun or developed or calculated or explained | Synonyms: base, basis, cornerstone, foundation, groundwork |
| fundamental | (noun) the lowest tone of a harmonic series | Synonyms: first harmonic, fundamental frequency |
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| (noun) any factor that could be considered important to the understanding of a particular business | - |
| fundamentalism | (noun) a form of Protestantism that takes the interpretation of every word in the sacred texts as literal truth | - |
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| (noun) the strict adherence to the basic principles or doctrines of a religion, ideology, etc. | - |
| fundamentalist | (noun) a supporter of fundamentalism | - |
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| (noun) an adherent of fundamentalist principles | - |
| fundamentalness | (noun) The state or condition of being fundamental; essential importance. | - |
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| fundamentals | (noun) principles from which other truths can be derived | Synonyms: basic principle, basics, bedrock, fundamental principle |
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| game | (noun) a contest with rules to determine a winner | - |
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| (noun) an amusement or pastime | - |
| (noun) your occupation or line of work | Synonyms: biz |
| (noun) a single play of a sport or other contest | - |
| (noun) frivolous or trifling behavior | - |
| (noun) animal hunted for food or sport | - |
| (noun) the game equipment needed in order to play a particular game | - |
| (noun) a secret scheme to do something (especially something underhand or illegal) | Synonyms: plot, secret plan |
| (noun) the flesh of wild animals that is used for food | - |
| (noun) (games) the score at a particular point or the score needed to win | - |
| (noun) (tennis) a division of play during which one player serves | - |
| gamebag | (noun) a canvas or leather bag for carrying game (especially birds) killed by a hunter | - |
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