| A | B |
| apothegm | n. pithy, compact saying. (proverbs) |
| apotheosis | n. elevation to godhood; an ideal example of something |
| appall | v. dismay; shock |
| apparition | n. ghost; phantom |
| appease | v. pacify or soothe; relieve |
| appellation | n. name; title |
| append | v. attach |
| application | n. diligent attention |
| apposite | adj. appropriate; fitting |
| appraise | v. estimate value of |
| appreciate | v. be thankful for; increase in worth; be thoroughly conscious of |
| apprehend | v. arrest (a criminal); dread; perceive |
| apprehensive | adj. fearful; discerning |
| apprise | v. inform |
| approbation | n. approval |
| appropriate | v. acquire; take possession of for one's own use |
| appurtenances | n. subordinate possessions |
| appropos | prep. with reference to; regarding |
| aptitue | n. fitness; talent |
| aquiline | adj. curved, hooked |
| arable | adj. fit for growing crops |
| arbiter | n. person with power to decide a matter in dispute; judge |
| arbitrary | dj. unreasonable or capricious; tyrannical |
| arbitrate | v. act as judge |
| arboretum | n. place where different varieties of trees and shrubs are studied and exhibited |
| arcade | n. a covered passageway, usually lined with shops |
| arcane | adj. secret; mysterious; known only to the initiated |
| archaeology | n. study of artifacts and relics of early mankind |
| archaic | adj. antiquated e.g. "methinks,""thee," and "thou" |
| archetype | n. prototype; primitive pattern |
| archipelago | n. group of closely located islands |
| archives | n. public records; place where public records are kept |
| ardor | n. heat; passion; zeal |
| arduous | adj. hard; strenous |