<p><strong>Interjection</strong></p><ul><li>(used to scare or drive away a cat, dog, chickens, birds, etc.)</li></ul><p><strong>Verb</strong></p><ul><li>(used with object) to drive away by saying or shouting “shoo.”</li><li>to request or force (a person) to leave: I'll have to shoo you out of here now.</li><li>(used without object) to call out “shoo.”</li></ul>