Ampere

ablaze;

scorch

able-bodied

ablutions

abnegate

abode

abolish

abominable;

abominate;

abominable snowman

abomination

Aboriginal;

Aborigin

abort

abortion;

abortive

abound;

abound in/with

abrade;

abrasion;

abrasive

abreast;

abreast of

abridge

abrogate

abject (abjectly)