- a
- a (an)
- abandon
- ability
- able
- about
- above
- abroad
- absence
- absolutely
- abuse
- academic
- accept
- access
- accident
- accommodation
- accompany
- accord
- account
- accurate
- accuse
- achieve
- achievement
- acknowledge
- acquire
- acquisition
- across
- act
- action
- active
- activist
- activity
- actor
- actual
- actually
- ad
- add
- addition
- additional
- address
- adjust
- administration
- admit
- adopt
- adult
- advance
- advantage
- advertise
- advertisement
- advice
Many glossary definitions are provided by the New General Service List by Browne, Culligan and Phillips, licensed under a Creative Commons Attribution 3.0 Unported License.