<p><strong>Noun</strong></p><ul><li>an instrument for measuring and recording time, especially by mechanical means, usually with hands or changing numbers to indicate the hour and minute: not designed to be worn or carried about.</li><li>a meter or other device, as a speedometer or taximeter, for measuring and recording speed, distance covered, or other quantitative functioning.</li><li>biological clock.</li><li>(in a clock or watch) a rod or wire, either straight or bent into a spiral, on which the time is struck.</li><li>British Slang: a medal or military decoration.</li></ul><p><strong>Verb</strong></p><ul><li>(used with object) to time, test, or determine by means of a clock or watch: The racehorse was clocked at two minutes thirty seconds.</li><li>Slang: to strike sharply or heavily: Somebody clocked him on the face.</li><li>Slang: to identify (someone) as transgender or as the gender they were assigned at birth, especially when they do not wish to be so identified: She clocked me on our first date, but told me she was transgender too.</li><li>verb phrase: to end work, especially by punching a time clock: He clocked out early yesterday.</li><li>to begin work, especially by punching a time clock: She clocked in at 9 a.m. on the dot.</li></ul>