acti - Albi
- adulticide
- adultism
- adultlike
- adultly
- adultness
- adultress
- adumbral
- adumbrate
- adumbrated
- adumbration
- adumbrative
- adumbratively
- aduncate
- aduncity
- aduncous
- Adurol
- adust
- adustiosis
- adustness
- Advaita
- Advaitism
- advance
- advance fee scam
- advance guard
- advance man
- advance person
- advance woman
- advanceable
- advanced
- Advanced Access Content System
- Advanced Encryption Standard
- advanced green
- advanced traffic management
- advanced train control system
- advancedness
- advancement
- advancer
- advancingly
- advantage
- advantageable