<p><strong>Verb (used with object)</strong></p><ul><li>to separate the grain or seeds from (a cereal plant or the like) by some mechanical means, as by beating with a flail or by the action of a threshing machine.</li><li>to beat as if with a flail.</li></ul><p><strong>Noun</strong></p><ul><li>the act of threshing.</li></ul><p><strong>Verb Phrase</strong></p><ul><li>to thresh wheat, grain, etc.</li><li>to deliver blows as if with a flail.</li></ul>