| Term | Definition |
| abjure | to renounce or retract esp. with formal solemnity;to repudiate |
| abrogate | to abolish by official means: put to an end; repeal |
| abstemious | sparing or moderate in eating & drinking; temperate in diet; using items sparingly |
| acumen | keen insight; shrewdness;good judgment |
| antebellum | before or existing before the war(esp. the American Civil War) |
| auspicious | promising success; opportune; favorable |
| arcane | known or understood by few; mysterious; secret |
| attenuate | to weaken or reduce in number. Force, intensity, value; to lessen the density of; to make slender |
| axiomatic | self- evident; obvious |
| antediluvian | of or belonging to the period before the flood; very old |
| alacrity | promptness in response; cheerful readiness |
| autodidact | a self taught person |
| aphorism | a concise statement of a principle |
| addle | (verb-to throw into confusion, to make or become rotten (adj.)-mentally confused;muddled |
| asperity | roughness of surface, sound, manner, or temper, weather; bad tember |
| ameliorate | to make better or more tolerable |
| acrimonious | biting or rancorous in feeling, language or manner |
| allegory | a symbolic representation that generalizes about human existence |
| anachronism | an error in chronology |
| aesthetic | of, relating to, or dealing with aesthetics or beauty |