<p><strong>Noun:</strong></p><ul><li>A garment made of strong material and designed to bind the arms, as of a violently disoriented person.</li><li>Anything that severely confines, constricts, or hinders.<ul><li>Example: "Conventional attitudes can be a straitjacket, preventing original thinking."</li></ul></li></ul><p><strong>Verb (used with object):</strong></p><ul><li>To put in or as in a straitjacket.<ul><li>Example: "Her ambition was straitjacketed by her family."</li></ul></li></ul>