| A | B |
| ABASE | lower; humiliate |
| ABASH | embarrass |
| ABATE | subside; decrease; lessen |
| ABBREVIATE | shorten |
| ABDICATE | renounce; give up |
| ABERRANT | abnormal; deviant |
| ABETTOR | encourager |
| ABEYANCE | suspend action |
| ABHOR | detest; hate |
| ABNEGATION | repudiation; self-sacrifice |
| ABOLISH | cancel; put an end to |
| ABOMINATE | loathe; hate |
| ABORIGINAL | primitive; native; the first of its kind |
| ABORTIVE | unsuccessful; fruitless |
| ABRADE | wear away by friction; erode |
| ABRIDGE | condense or shorten |
| ABSCOND | depart secretly and hide |
| ABSOLVE | pardon (an offense) |
| ABSTAIN | refrain; hold back voluntarily from an action/practice |
| ABSTEMIOUS | sparing in eating and drinking; temperate |
| ABSTINENCE | restraint from eating or drinking |
| ABSTRACT | theoretical; not concrete; nonrepresentational |
| ABSTRUSE | obscure; profound; difficult to understand |
| ABUSIVE | coarsely insulting; physically harmful |