to aggregate	to gather, to accumulate
aggressor	attacker
aghast	horrified
agility	nimbleness
to agitate	to stir up, to disturb
agnostic	sb who is skeptical of the existence of God
agrarian	pertaining to land or its cultivation
alacrity	cheerful promptness, eager readiness
alchemy	medieval chemistry
alcove	nook, small, recessed section of a room
alias	an assumed name
to alienate	to make hostile, separate
alimentary	supplying nourishment
alimony	payment by a husband to his divorced wife
to allay	to calm, to pacify
to allege	to state without proof
allegiance	loyalty
allegory	a story which characters are used as symbols, fable
to alleviate	to relieve
alliteration	repetition of beginning sound in poetry
to allocate	to assign
alloy	a mixture as of metals
to alloy	to mix
to allude	to refer indirectly
to allure	to temp, to attract, to entice
allusion	indirect reference
aloft	upward
aloof	apart, reserved, distanced
altercation	noisy quarrel, heated dispute
altruistic	unselfishly generous
to amalgamate	to combine, to unite in one body
to amass	to collect
ambidexterous	capable of using either hand with equal ease
ambience	environment, atmosphere
ambiguous	unclear or doubtful in meaning
ambivalence	the state of having contradictory attitudes
amble	moving at an easy pace
ambulatory	able to walk, not bedridden