| A | B |
| accessible | easily reached, understood, or available; approachable; susceptible; easy for physically challenged people to use |
| accompanying | escort somebody; be present with or occur with something; supplement something; provide musical backing |
| acquaintance | somebody who is known slightly rather than intimately |
| adapt | change to meet requirements; adjust to something; rewrite book or play to make it into a film or for television |
| adequate | enough; just barely enough |
| adjustment | change something slightly; adapt to new circumstances |
| admirable | excellent; deserving to be admired |
| advantageous | giving advantage; useful |
| advertising | public promotion of something; industry that creates advertisements; advertisements considered collectively |
| advice | recommendation about action; official information |
| advisable | worth doing; being a sensible or desirable thing to do |
| advise | offer advice; recommend something; inform somebody; seek advice |
| usually | typical or normal; ordinary way; what somebody customarily has |
| advisory | giving advice; having function of giving advice; informational bulletin; warning of something to come |
| aggravate | annoy somebody; make something worse |
| allowance | money given to a child by parents; permitted amount; budgeted amount; discount; toleration; handicap; amount of variation allowed; to take a charitable view of somebody and take mitigating circumstances into account |
| annoyance | feeling of irritation; nuisance; something that causes somebody to be mildly angry or impatient |
| annual | once a year; for period of one year; a plant that dies after one season; yearbook |
| anxious | feeling nervous; eager; producing anxiety |
| allowable | let something happen; the adjective form of allow |