Pleonasm Definition
Pleonasm is the use of an excessive number of words to say something, including unnecessary repetition, especially when this is done through ignorance rather than for effect:
Could you repeat that again? (Again is unnecessary)
See Also:
Irony; Hyperbole; Sarcasm; Slang; Jargon; Figure of Speech; Understatement; Litotes; Rhetorical Question; Cliche; Allegory;Tautology; Redundancy