<p><strong>Pronoun</strong></p><ul><li>The objective case of he:<ul><li>I'll see him tomorrow.</li><li>Give him the message.</li></ul></li><li>Used informally instead of the pronoun he in the predicate after the verb to be:<ul><li>It's him.</li><li>It isn't him.</li></ul></li><li>Used informally instead of the pronoun his before a gerund:<ul><li>We were surprised by him wanting to leave.</li></ul></li></ul><p><strong>Noun</strong></p><ul><li>Informal: a male:<ul><li>Is the new baby a her or a him?</li></ul></li></ul>