acrimonious (adj.): angry/ bitter esp. of speech
acquiesce (verb): agree passively.
adjourn (verb): suspend/ break off with the intention of resuming later; go somewhere for refreshment (adjourn at a local pub).
adonis (noun): a beautiful man esp. in Greek mythology.
accrete (verb): grow/ form by gradual accumulation
argot (noun): specialized jargon of a particular group or profession.
assuage (verb): reduce an unpleasant feeling esp. physical pain.
asunder (adverb): apart/ divided.
aspersion (noun) : slander/ libel/ defamation.
artifice (noun): trick/ ruse/ wile esp. to deceive others.
armistice (noun): truce esp. in wartime.
au courant (adj.): up to date/ aware of what is going on; well informed.
augur (verb): portend negative or positive outcomes; predict.