<p><strong>Noun</strong></p><ul><li>the point of a pin</li><li>a trifle; pinhead</li><li>a tiny spot or sharp point</li></ul><p><strong>Verb</strong></p><ul><li>to locate or describe exactly or precisely: to pinpoint the problem</li></ul><p><strong>Adjective</strong></p><ul><li>exact; precise: pinpoint accuracy</li></ul>