<p><strong>Noun</strong></p><ul><li>A fastening device that allows the thing fastened to turn around freely upon it, especially to turn in a full circle.</li><li>Such a device consisting of two parts, each of which turns around independently, as a compound link of a chain, one part of which turns freely in the other by means of a headed pin or the like.</li><li>A pivoted support allowing a gun to turn around in a horizontal plane.</li><li>A swivel gun.</li><li>A device attached to a loom and used as a shuttle to weave extra threads in the production of small figures, especially dots.</li></ul><p><strong>Verb</strong></p><ul><li>To turn or pivot on or as if on a swivel: He swiveled his chair around.</li><li>To fasten by a swivel; furnish with a swivel.</li><li>(Used without object) To turn on or as if on a swivel.</li></ul>