Huh Definition

hŭ

interjection

Used to express contempt, surprise, etc.

Webster's New World

Used to ask a question.

Webster's New World

(slang, with falling pitch) Used either to belittle the issuer of a statement/question, or sarcastically to indicate utter agreement, and that the statement being responded to is an extreme understatement. The intonation is changed to distinguish between the two meanings - implied dullness for belittlement, and feigned surprise for utter agreement.

(belittlement) A:"We should go to an amusement park, it would be fun." B:"Huh."

(agreement) A""Murder is bad." B:"Huh!"

Wiktionary

(informal, with rising pitch) Used to indicate that one did not hear what was said.

Huh? Could you speak up?

Wiktionary