huh

interjection

1. (with falling pitch) used to express amusement or subtle surprise.“Huh! I'm sure I locked it when I left.”
2. Used to express doubt or confusion.“Huh? Where did they go?”
3. (with rising pitch) Used to reinforce a question.“Where were you last night? Huh?”
4. (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.“(agreement) A: "Murder is bad." B: "Huh!"”