Allegory: a tale in prose or verse in which characters, actions, or something represent abstract ideas or moral qualities: a story that uses symbols to make a point.
Alliteration: the repetition of similar initial sounds usually consonants, in a group of words.
Allusion: a reference to a person, a place, an event, or a literary work that a writer expects a reader to recognize.
Ambiguity: something uncertain as to interpretation
Anachronism: something that shows up in the wrong place or the wrong time