A/a art. 1.one, any
2. first letter of english alphabet.

A 1 or A-one first rate, first class, informal excellent.

aback adv. towards the back,
taken~ surprised

abandonvt. give up
abase vt. degrade.
abash vt. embarras, disconcert, put shame.
abate vt.,vi. make or become less; ~ment n. reduction.

abattoirn. a slaughter house.
abbotn. head of community of monks.
abdicatevt. renounce the throne or responsibility.
abductvt. kidnap, carry off illegally.
abedadv. in bed