huh

Etymology

Attested from circa 1600. Compare Dutch hè (“huh”).

intj

1. (with rising pitch) Used to express doubt or confusion.
   Huh? Where did they go?
2. (with falling pitch) Used to express amusement or subtle surprise.
   Huh! I'm sure I locked it when I left.
3. (with rising pitch) Used to reinforce a question.
   Where were you last night? Huh?
4. (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!"
5. (informal, with rising pitch) Used to indicate that one did not hear what was said.
   Huh? Could you speak up?
6. (informal, with falling pitch) Used to create a tag question.
   It's getting kind of late, huh?