- ABJURE - To give up on Oath.
- ABLUTION - Religious washing during ceremonies.
- ABNEGATION - Self-denial.
- ABOLISH - To put an end.
- ABOLITIONIST - Person who favours/favors abolition of a practice.
- ABOMINABLE - Detestable.
- ABOMINATE - To hate, to detest.
- ABORIGINE - Native inhabitant.
- ABORTIVE - Futile, unsuccessful.
- ABRADE - To wear away.
- ABRIDGE - To shorten.
- ABROGATE - To annul, to put an end.
- ABSCESS - Pus in the cavity.
- ABSCOND - To run away, escape.
- ABSOLVE - Acquit from crime,blame, to discharge.
- ABSTAIN - To refrain.
- ABSTEMIOUS - Characterized by self denial, as in the use of drink, food.
- ABSTINENCE - To restrain.
- ABSTRACT - Summary.
- ABSTRUSE - Confuse, difficult to understand.

