irony |ˈīrənē, ˈiərnē|
• the expression of one's meaning by using language that normally signifies the opposite, typically for humorous or emphatic effect
• a state of affairs or an event that seems contrary to what one expects and is often amusing as a result
• a literary technique, originally used in Greek tragedy, by which the full significance of a character's words or actions are clear to the audience or reader although unknown to the character.
• a fire extinguisher factory burning down in Chicago