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Glossary · Nouns · A

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TermTypeDefinitionClassificationsUpdated
Affiantnouna person who makes an affidavitverifiedMay 18, 2026
Affidavitnounwritten declaration made under oathverifiedMay 18, 2026
affiliatenounThis role focuses on persons who are affiliated with other persons or organizations or on organizations or individuals that control or are controlled by a third party. Any person associated with another person or organization or any organization or individual being controlled by or controlling a third party should be assigned to this role.RoleMay 9, 2026
Affiliationnounthe act of becoming formally connected or joinedverifiedMay 18, 2026
Affine GeometrynounMWEthe geometry of affine transformationsverifiedMay 18, 2026
Affine TransformationnounMWE(mathematics) a transformation that is a combination of single transformations such as translation or rotation or reflection on an axisverifiedMay 18, 2026
Affinitynounin biology, state of relationship between organisms or groups of organisms resulting in resemblance in structure or structural partsverifiedMay 18, 2026
Affirmationnoun(religion) a solemn declaration that serves the same purpose as an oath (if an oath is objectionable to the person on religious or ethical grounds)verifiedMay 18, 2026
Affirmative ActionnounMWEa policy designed to redress past discrimination against women and minority groups through measures to improve their economic and educational opportunitiesverifiedMay 18, 2026
Affirmative PleadingnounMWEany defensive pleading that affirms facts rather than merely denying the facts alleged by the plaintiffverifiedMay 18, 2026
Affirmativenessnounthe agreeable quality of one who assentsverifiedMay 18, 2026
Affirmernounsomeone who claims to speak the truthverifiedMay 18, 2026
Affixationnounthe result of adding an affix to a root wordverifiedMay 18, 2026
Afflatusnouna strong creative impulseverifiedMay 18, 2026
Afflictionnouna state of great suffering and distress due to adversityverifiedMay 18, 2026
Affluencenounabundant wealthverifiedMay 18, 2026
Afforestationnounthe conversion of bare or cultivated land into forest (originally for the purpose of hunting)verifiedMay 18, 2026
Affraynouna noisy fightverifiedMay 18, 2026
Affricatenouna composite speech sound consisting of a stop and a fricative articulated at the same point (as `ch' in `chair' and `j' in `joy')verifiedMay 18, 2026
Affricate ConsonantnounMWEa composite speech sound consisting of a stop and a fricative articulated at the same point (as `ch' in `chair' and `j' in `joy')verifiedMay 18, 2026
Affricationnounthe conversion of a simple stop consonant into an affricateverifiedMay 18, 2026
Affricativenouna composite speech sound consisting of a stop and a fricative articulated at the same point (as `ch' in `chair' and `j' in `joy')verifiedMay 18, 2026
Affusionnounthe act of baptizing someone by pouring water on their headverifiedMay 18, 2026
Afibrinogenemianounthe absence of fibrinogen in the plasma leading to prolonged bleedingverifiedMay 18, 2026
Aficionadonouna serious devotee of some particular music genre or musical performerverifiedMay 18, 2026
Aflatoxinnouna potent carcinogen from the fungus AspergillusverifiedMay 18, 2026
African American Vernacular EnglishnounMWEa nonstandard form of American English characteristically spoken by African Americans in the United StatesverifiedMay 18, 2026
Afronouna rounded thickly curled hairdoverifiedMay 18, 2026
Afro HairdonounMWEa rounded thickly curled hairdoverifiedMay 18, 2026
Afropavonounboth sexes are brightly coloredverifiedMay 18, 2026
afternounThis limits a Control or Mandate's secondary verb to be put into play once the event taking place has concluded.candidateMay 9, 2026
After AllnounMWEin spite ofverifiedMay 18, 2026
After PartnounMWEthe rear part of a shipverifiedMay 18, 2026
After-Shavenouna fragrant lotion for a man's face after shavingverifiedMay 18, 2026
After-Shave LotionnounMWEa fragrant lotion for the face after shavingverifiedMay 18, 2026
Afterbirthnounthe placenta and fetal membranes that are expelled from the uterus after the baby is bornverifiedMay 18, 2026
Afterburnernouna device injects fuel into a hot exhaust for extra thrustverifiedMay 18, 2026
Aftercarenouncare and treatment of a convalescent patientverifiedMay 18, 2026
Afterdampnouna toxic mixture of gases (including carbon dioxide and carbon monoxide and nitrogen) after an explosion of firedamp in a mineverifiedMay 18, 2026
Afterdecknouna deck abaft of midshipsverifiedMay 18, 2026
Aftereffectnounany result that follows its cause after an intervalverifiedMay 18, 2026
Afterglownounthe pleasure of remembering some pleasant eventverifiedMay 18, 2026
Afterimagenounan image (usually a negative image) that persists after stimulation has ceasedverifiedMay 18, 2026
Afterlifenounlife after deathverifiedMay 18, 2026
Aftermathnounthe outcome of an event especially as relative to an individualverifiedMay 18, 2026
Afternoonnouna conventional expression of greeting or farewellverifiedMay 18, 2026
Afternoon TeanounMWEa light midafternoon meal of tea and sandwiches or cakesverifiedMay 18, 2026
Afterpainsnounpains felt by a woman after her baby is bornverifiedMay 18, 2026
Afterpiecenouna brief dramatic piece (usually comic) presented after a playverifiedMay 18, 2026
Aftersensationnounan image (usually a negative image) that persists after stimulation has ceasedverifiedMay 18, 2026
Aftershaftnouna supplementary feather (usually small) on the underside of the base of the shaft of some feathers in some birdsverifiedMay 18, 2026
Aftershocknouna tremor (or one of a series of tremors) occurring after the main shock of an earthquakeverifiedMay 18, 2026
Aftertastenounan afterimage of a tasteverifiedMay 18, 2026
Afterthoughtnounan addition that was not included in the original planverifiedMay 18, 2026
Afterworldnounthe place where you are after you dieverifiedMay 18, 2026
Aganountitle for a civil or military leader (especially in Turkey)verifiedMay 18, 2026
Agalnouna cord (usually of goat's hair) that Arabs (especially Bedouins) wind around their heads to hold down the kaffiyehverifiedMay 18, 2026
Agalactianouna condition in which milk is not secreted in the mother's breasts after her child has been deliveredverifiedMay 18, 2026
Agalactosisnouna condition in which milk is not secreted in the mother's breasts after her child has been deliveredverifiedMay 18, 2026
Agamanounsmall terrestrial lizard of warm regions of the Old WorldverifiedMay 18, 2026
Agametenounan asexual reproductive cellverifiedMay 18, 2026
Agamidnouna lizard of the family AgamidaeverifiedMay 18, 2026
Agamid LizardnounMWEa lizard of the family AgamidaeverifiedMay 18, 2026
Agammaglobulinemianouna rare immunological disorder characterized by the virtual absence of gamma globulin in the blood and consequent susceptibility to infectionverifiedMay 18, 2026
Agamogenesisnounreproduction without the fusion of gametesverifiedMay 18, 2026
Agapanthusnounany of various plants of the genus Agapanthus having umbels of showy blue to purple flowersverifiedMay 18, 2026
Agape LovenounMWEselfless love of one person for another without sexual implications (especially love that is spiritual in nature)verifiedMay 18, 2026
Agarnounany culture medium that uses agar as the gelling agentverifiedMay 18, 2026
Agar-Agarnouna colloidal extract of algaeverifiedMay 18, 2026
Agaricnouna saprophytic fungus of the order Agaricales having an umbrellalike cap with gills on the undersideverifiedMay 18, 2026
Agatenounan impure form of quartz consisting of banded chalcedonyverifiedMay 18, 2026
Agate LinenounMWEspace for one line of print (one column wide and 1/14 inch deep) used to measure advertisingverifiedMay 18, 2026
Agatewarenounpottery that is veined and mottled to resemble agateverifiedMay 18, 2026
Agavenountropical American plants with basal rosettes of fibrous sword-shaped leaves and flowers in tall spikesverifiedMay 18, 2026
Agave FamilynounMWEchiefly tropical and xerophytic plants: includes Dracenaceae (Dracaenaceae)verifiedMay 18, 2026
Age BracketnounMWEa group of people having approximately the same ageverifiedMay 18, 2026
Age ClassnounMWEpeople in the same age rangeverifiedMay 18, 2026
Age GroupnounMWEa group of people having approximately the same ageverifiedMay 18, 2026
Age LimitnounMWEregulation establishing the maximum age for doing something or holding some positionverifiedMay 18, 2026
Age NormnounMWEthe average age at which particular performances are expected to appearverifiedMay 18, 2026
Age of ConsentnounMWEthe minimum age for marrying without parental consent or the minimum age for consensual sexual relationsverifiedMay 18, 2026
Age-Related Macular DegenerationnounMWEmacular degeneration that is age-relatedverifiedMay 18, 2026
Agednessnounthe property characteristic of old ageverifiedMay 18, 2026
Ageismnoundiscrimination against middle-aged and elderly peopleverifiedMay 18, 2026
Agelessnessnounthe quality of being timeless and eternalverifiedMay 18, 2026
AgencynounAny executive department, military department, government corporation, government-controlled corporation, or other establishment in the executive branch of the government (including the Executive Office of the President), or any independent regulatory agency, but does not include: 1) the Government Accountability Office; 2) the Federal Election Commission; 3) the governments of the District of Columbia and of the territories and possessions of the United States, and their various subdivisions; or 4) government-owned contractor-operated facilities, including laboratories engaged in national defense research and production activities.OrganizationMay 9, 2026
Agency Certification AuthoritynounMWEA CA that acts on behalf of an agency and is under the operational control of an agency.CapabilityRegulatedCUIMay 9, 2026
Agency SecuritynounMWEa security issued by United States government agencies or the Farm Credit SystemverifiedMay 18, 2026
Agendanouna temporally organized plan for matters to be attended toverifiedMay 18, 2026
Agenda ItemnounMWEone of the items to be consideredverifiedMay 18, 2026
Agendumnouna list of matters to be taken up (as at a meeting)verifiedMay 18, 2026
Agenesianounimperfect developmentverifiedMay 18, 2026
Agenesisnounimperfect developmentverifiedMay 18, 2026
AgentnounA program acting on behalf of a person or organization.SystemMay 9, 2026
Agent BanknounMWEA member of a bankcard company that agrees to participate in an acquirer's merchant processing program. The agent may be liable for losses incurred on its merchant accounts. An agent is usually a small financial institution that wants to offer merchant processing services as a customer service. Agent banks that only refer merchants to an acquiring financial institution's program are known as referral banks.OrganizationMay 9, 2026
Agent ProvocateurnounMWEa secret agent who incites suspected persons to commit illegal actsverifiedMay 18, 2026
Agent-In-Placenounan operative serving as a penetration into an intelligence targetverifiedMay 18, 2026
Agentive RolenounMWEthe semantic role of the animate entity that instigates or causes the happening denoted by the verb in the clauseverifiedMay 18, 2026
Agerasianounyouthful appearance in an old personverifiedMay 18, 2026
Ageratumnounrhizomatous plant of central and southeastern United States and West Indies having large showy heads of clear blue flowersverifiedMay 18, 2026