| Term | Definition |
| Abhor | To loathe, detestAfter she failed repeatedly to learn the Pythagorean theorem, Susan began to abhor geometry. |
| Abridge | To condense, shorten.The teacher assigned an abridged version of Tristram Shandy to her class, as the original was very long. |
| Abscond | To depart secretlyAfter being fired, the disgruntled worker absconded in the middle of the night with six computers. |
| Abstemious | Sparing or limited in appetite, restrictive.His abstemious diet helped to keep him slim. |
| Accolade | Praise, distinction.The winner of the spelling bee beamed as accolades were heaped upon her. |
| Accretion | Growth in size or increase in amount.The committee’s fundraising efforts resulted in an accretion in scholarship money. |
| Acme | Highest point, summit.The dictator was assassinated just as he reached the acme of his power. |
| Acquittal | Release from blame.The public was astonished at the jury’s acquittal of the serial killer, how could they let him go? |
| Acrimonious | Bitter, filled with animosity.The couple’s acrimonious devoice made their mutual friends feel uncomfortable. |
| adage | Old saying or proverb.“A penny saved is a penny earned” is a popular adage. |
| adapt | To accommodate, adjust.Although it may be difficult at first, we all have to adapt to the new computer system. |
| addled | Muddled, confused.Walking through the desert for so long addled his mind. |
| adhere | To cling or follow without deviation.He was a strict Catholic who adhered to all the teaching of the church. |
| adroit | Skillful, accomplished, highly competent.The adroit athlete completed even the most difficult obstacle course with ease. |
| adulation | High praise.After Ana’s piano recital, the audience lavished her with adulation. |
| adversarial | Antagonistic, competitive.The brothers’ adversarial relationship made it impossible for them to support each other in the times of need. |
| adversity | Difficult or harmful situation.She has faced a lot of adversity throughout her childhood. |
| aesthetic | Pertaining to beauty or art.The museum curator, with her fine aesthetic sense, created an exhibit that was a joy to behold. |