*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.
-I was having trouble thinking of an example, so I took from my own experience. I think this is correct, but please correct me if I am wrong: I went to a play at the melodrama. The story was about Sherlock Holmes, so Victorian England. Everything matched, clothes and all. So the Allusion, was when Sherlock goes off on a particular character, explaining everything about this women, with out ever seeing her before this moment, like Sherlock normally does. Then when Watson asks, "how on earth could you of possibly known that?" Sherlock reaches into his pocket and pulls out an iphone saying, "oh, well I just googled her on my iphone." I think that is the Allusion. Because the reference was something that me, the audience was supposed to catch. It was also really funny.
*Ambiguity: Something uncertain as to interpretaion
*Anachronism: Something that shows up in the wrong place or the wrong time.
For Doctor Who Fans:
But For Everybody Else: