APOSTROPHE
a punctuation mark (') used to indicate either possession (e.g. harry's book; boys' coats) or the omission of letters or numbers (e.g. can't; he's; 1 jan. '99)
an exclamatory passage in a speech or poem addressed to a person (typically one who is dead or absent) or thing (typically one that is personified)
an exclamatory passage in a speech or poem addressed to a person (typically one who is dead or absent) or thing (typically one that is personified)