<p><strong>Interjection</strong></p><ul><li>(used to command an animal, especially a horse, to stop)</li><li>(used to tell a person to stop, wait, or slow down): "Whoa, you need to sit over there and calm yourself."</li><li>(an exclamation of surprise, wonder, pleasure, etc.): "Whoa, that's a great photo!"</li></ul>