<p><strong>Verb (used without object)</strong></p><ul><li>shrank</li><li>often</li><li>shrunk</li><li>shrunk or shrunken</li><li>shrinking</li></ul><p><strong>Verb (used with object)</strong></p><ul><li>shrank</li><li>often</li><li>shrunk</li><li>shrunk or shrunken</li><li>shrinking</li></ul><p><strong>Noun</strong></p><ul><li>an act or instance of shrinking</li><li>a shrinking movement</li><li>shrinkage</li><li>head shrinker (slang)</li></ul>