| A | B |
| aberration | departure from what is normal, typical |
| abstemious | eating and drinking in moderation |
| abstruse | difficult to understand |
| accolade | approval; praise; an award |
| accommodate | to do a favor or service for; to contain |
| acquiesce | to agree or comply passively |
| aesthetic | artistic; re: appreciation of beauty |
| affable | easy; pleasant; approachable |
| affinity | natural attraction; feeling of kinship |
| altercation | noisy, energetic quarrel |
| ambivalence | opposing feelings toward the same thing |
| ameliorate | to improve; to make better |
| amicable | friendly |
| anarchy | absence of political authority |
| anomaly | departure from what is normal |
| apocryphal | fictitious; of questionable authenticity |
| appall | to cause dismay or anxiety |
| archaic | antiquated or primitive |
| arduous | difficult; strenuous |
| articulate | able to express oneself easily and effectively |