- ABUT - Lean upon, to adjoin.
- ABYSMAL - unfathomable
- ABYSS - Hole so deep that it seems to have no bottom
- ACCEDE - To agree
- ACCESSORY - Thing useful but not essential.
- ACCLIMATE - Accustom to new Climate.
- ACCLIVITY - Upward slope.
- ACCOLADE - Award, praise or honour/honor.
- ACCOMPANY - To associate, to join.
- ACCOMPLICE - Person who help in committing crime.
- ACCOMPLISH - Succeed.
- ACCORD - Agree.
- ACCOST - To approach and speak first.
- ACCOUTRE - Equip or dress up.
- ACCRETION - Continued growth.
- ACCRUE - Accumulate.
- ACERBITY - Bitterness.
- ACIDULOUS - Caustic.
- ACKNOWLEDGE - Express gratitude or thanks.
