<p><strong>Adjective</strong></p><ul><li>comparative of young.</li><li>(usually initial capital letter) (used to designate the junior of two related persons bearing the same name): Charles the Younger ruled after his father abdicated.</li></ul><p><strong>Noun</strong></p><ul><li>the junior of two persons in age (often used with a possessive pronoun): Her brother is seven years her younger.</li></ul>