- ADJUNCT - Sub-ordinate.
- ADJURE - Command.
- ADJUTANT - A officer who assists superior officers by communicating orders.
- ADMONISH - To warn.
- ADNAUSEAM - To the point producing disgust.
- ADOBE - Sun-dried brick.
- ADORE - To worship, to love.
- ADORN - To decorate.
- ADROIT - Skillful.
- ADULATION - Praise.
- ADULTERATE - To debase by mixing substance.
- ADVENT - Arrival.
- ADVENTITIOUS - Additional.
- ADVERSARY - Enemy.
- ADVERSE - Opposed, unfavourable/unfavorable.
- ADVERSITY - Hardship, poverty.
- ADVERT - To refer, to turn one's attention.
- ADVOCATE - Lawyer.
- AEGIS - Shield, Patronage.
- AEON - Eternity.
