abettor :: encourager

　　abeyance :: suspended action

　　ablution :: washing

　　abnegation :: repudiation; self-sacrifice

　　abstinence :: restraint from eating or drinking

　　accessory :: additional object: useful but not essential thing

　　acclivity :: sharp upslope of a hill

　　accolade :: award of merit

　　accomplice :: partner in crime

　　accord :: agreement

　　accretion :: growth: increase

　　acerbity :: bitterness of speech and temper

　　acme :: top: pinnacle

　　acoustics :: science of sound: quality that makes a room easy or hard to hear in

　　acquiescence :: submission; compliance

　　acquittal :: deliverance from a charge

　　acumen :: mental keenness

　　adage :: wise saying: proverb

　　addiction :: compulsive, habitual need

　　adjunct :: something attached to but holding an inferior position

　　adjuration :: solemn urging

　　admonition :: warning

　　adulation :: flattery: admiration

　　adumbration :: foreshadowing: outlining

　　advent :: arrival

　　adversity :: poverty: misfortune

　　aegis :: shield; defense

　　aeon :: long period of time; an age

　　affidavit :: written statement made under oath

　　affiliation :: joining: associating with

　　affinity :: kinship

　　affirmation :: solemn pledge by one who refuses to take an oath

　　afflatus :: inspiration

　　affluence :: abundance: wealth

　　affray :: public brawl

　　agenda :: items of business at a meeting

　　agglomeration :: collection: heap

　　agility :: nimbleness

　　agitation :: strong feeling; excitement

　　agnostic :: one who is skeptical of the existence or knowability of a god

　　agronomist :: scientist engaged in the management of land

　　alacrity :: cheerful pro