A
1.ability n.inability/disability
2.able a.unable
3.abnormal a.normal
4.above prep.below
5.abroad ad.home
6.absence n.presence
7.absent a.present
8.abstract a.concrete
9.accept v.refuse/decline
10.accompany v.leave
11.accuse v.defend
12.achieve v.fail
13.achievement n.failure
14.acquire/gain v.lose
15.across prep.along/round
16.add v.subtract
17.adequate a.inadequate
18.adjust v.disturb
19.admit/acknowledge v.deny
20.admit v.exclude/banish
21.adopt v.reject
22.advance v/n.retreat
23.afraid a.brave
24.after conj.before
25.afterward ad.beforehand
……