3 Types of Irony

Dramatic Irony
Irony that in novels or drama in which a situation is understood by the audience but not grasped by the characters.
Situational Irony
Irony involving a situation in which actions have an effect that is opposite from what was intended, so that the outcome is contrary to what was expected.
Verbal Irony
Irony in which a person says or writes one thing and means another, or uses words to convey a meaning that is the opposite of the literal meaning.