1. ah - Noun
2. ah - Adjective
3. ah - Verb
4. ah - Adverb
5. ah - Pronoun
6. ah - Conjunction
7. ah - Interjection
8. ah - Particle
9. ah - Prefix
An exclamation, expressive of surprise, pity, complaint, entreaty, contempt, threatening, delight, triumph, etc., according to the manner of utterance.
Source: Webster's dictionary