What is Apostrophe?

Apostrophe definition and meaning on Dictionary terms:
the sign (‘), as used: to indicate the omission of one or more letters in a word, whether unpronounced, as in o’er for over, or pronounced, as in gov’t for government; to indicate the possessive case, as in man’s; or to indicate plurals of abbreviations and symbols, as in several M.D.’s, 3’s.


reference: www.dictionary.com/browse/apostrophe