| A | B |
| aberration | deviation from what is correct, proper, or expected |
| abstinence | the act of holding back or doing without |
| abstruse | difficult to understand |
| obviate | dispose of or render unnecessary |
| obsess | to besiege; preoccupy the mind excessively |
| abeyance | yawn or gape at; temporary suspension of activity |
| abhorrence | shudder from; loathsome; disgusting |
| obdurate | to harden; stubborn |
| abstract | to draw from; not concrete; not easily understood |
| obsequious | exhibiting servile compliance, fawning |