<p><strong>Noun</strong></p><ul><li>one of three identical items, especially copies of typewritten material.</li></ul><p><strong>Verb</strong></p><ul><li>to make threefold; triple.</li><li>to make in triplicate: to triplicate a report before releasing it.</li></ul><p><strong>Adjective</strong></p><ul><li>produced in or consisting of three copies or parts; threefold; triple: triplicate contracts.</li></ul>