<p><strong>Noun</strong></p><ul><li>the esophagus</li><li>the throat or pharynx</li><li>a channel for water</li><li>a gully or ravine</li><li>a preparatory cut in an excavation</li><li>a concavity between two sawteeth, joining them at their bases</li></ul><p><strong>Verb</strong></p><ul><li>(used with object) to form a concavity at the base of (a sawtooth)</li></ul>