<p><strong>Interjection</strong></p><ul><li>(Used as an exclamation expressing surprise, delight, joy, etc.)</li></ul><p><strong>Noun</strong></p><ul><li>The exclamation “aah.”</li></ul><p><strong>Verb</strong></p><ul><li>(Used without object) To exclaim or utter “aah”: We all oohed and aahed at the lovely birthday cake.</li></ul>