Definitions

1. interjection

an expression of uncertainty, hesitation, or inquiry, often used as a filler word

“I said I’d meet you at 7, uh, is that okay with you?”

2. verb

to express uncertainty or hesitation

“I’m not sure what to say, uh, how do I start?”

3. noun

a filler word or expression of uncertainty

“In the middle of the conversation, she said ‘uh’ and changed the subject”

4. adverb

used to indicate a pause or hesitation

“She hesitated, uh, and then continued talking”