abseil -- Verb: Lower down onself using a rope...similar to rappeling
abdicating -- give up, such as power, monarchy, duties, etc
assiduously -- Adv: with care and persistence
adversary
ambivalence -- mixed emotion
amorous -- adj: expressive of sexual feelings
apparitions -- An act of appearing or becoming visible unexpectedly
arbitration
apocryphal -- questionable, of questionable authenticity
atonement -- Compensation for a wrong
alliteration -- Use of the same consonant at the beginning of each stressed syllable. Beginning rhyme