<p><strong>Noun</strong></p><ul><li>the sign ('), as used:<ul><li>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</li><li>to indicate the possessive case, as in man's</li><li>to indicate plurals of abbreviations and symbols, as in several M.D.'s, 3's</li></ul></li></ul>