| A | B |
| abbreviate (v) | To make briefer, to shorten |
| aberration (n) | A deviation from what is normal or natural, an abnormality |
| abeyance (n) | A temporary lapse in activity; suspension |
| abjure (v) | To renounce or reject; to officially disclaim |
| abrade (v) | To irritate by rubbing; to wear down in spirit |
| abridge (v) | To shorten, to reduce |
| abrogate (v) | To nullify, to abolish |
| abscond (v) | To make a secret departure, to elope |
| accretion (n) | A gradual build-up or enlargement |
| activism (n) | A belief or practice based on direct action |
| adjunct (n) | Something added to another thing, but not a part of it; an associate or assistant |
| adulterate (v) | To corrupt, to make impure |
| adversary (n) | An enemy or opponent |
| advocate (n) | One who pleads on another's behalf |
| affability (n) | The quality of being easy to talk to and gracious |
| affected (adj) | False, artificial |
| affiliation (n) | Connection, association |
| affinity (n) | A feeling of shared attraction, kinship; a similarity |
| aggrandize (v) | To make bigger or greater; to inflate |
| aggression (n) | Forceful action or procedure |
| agitation (n) | A disturbance; a disturing feeling of upheaval and excitement |
| alignment (n) | The proper positioning of parts in relation to each other |
| allocate (v) | To apportion for a specific purpose; to distribute |
| alluded (v) | Make indirect reference to |
| amalgamate (v) | To blend thoroughly |
| ameliorate (v) | To make something better or more tolerable |
| amortize (v) | To pay or or reduce a dept gradually through periodic payments |
| amplify (v) | To enlarge, expand, or increase |
| anachronistic (adj) | Out of the proper time |
| analogous (adj) | Having a likeness or similarity |