| Term | Definition |
| abase | humble, degrade, lower oneself |
| abate | to decrease in amount or degree |
| abdicate | to give up (as a throne) formally |
| abet | incite, encourage, assist |
| abeyance | a condition of suspended activity |
| abhor | to hate |
| abominate | to loathe, detest |
| aborigine | original inhabitants of a religion |
| abrade | to wear away by friction |
| abrogate | to annul, revoke, or abolish |
| abscond | to depart secretly to avoid capture or legal prosecution |
| absolve | to pardon |
| abstract | a summary |
| abstruse | hard to understand |
| abut | to touch along a border |
| accolade | an expression of praise : award |
| accrue | to accumulate |
| acerbity | sourness, bitterness |
| acme | the highest point |
| acrimony | sharpness of language or feeling |
| adamant | inflexible; unyielding |
| adjudicate | to settle judicially |
| adjunct | something additional; appendage, appendix |
| admonish | to warn gently; reprimand |
| adroit | dexterous with one's hands; skillful |
| adulate | to flatter or admire excessively |
| advocate | to plead in favor of |
| aesthetic | to appreciate beauty |
| affable | friendly; courteous |
| affinity | attraction, sympathy |
| affluence | abundant supply, wealth |
| affront | insult |
| aggrandize | to enlarge |
| agile | able to move quickly and easily |
| agnostic | one who questions the existence of God |
| alacrity | cheerful readiness; liveliness |
| allay | to calm to reduce intensity |
| allegory | a story in which people, things, and events have a hidden meaning |
| allocate | allot, assign |
| allude | to refer to indirectly |
| altercation | a noisy or angry dispute |
| altruism | unselfish interest in the welfare of others |
| ameliorate | to make grow, improve |
| amiable | pleasant, kind |
| amnesty | granting a pardon to a group of individuals |
| amulet | an ornament worn as a charm against evil |
| anachronism | one that is chronically out of place |
| anarchy | absence of government or law and order |
| anathema | a solemn curse or ban |
| animosity | ill will, resentment |