Huh
/hʌ/
interjection
(with falling pitch) used to express amusement or subtle surprise.
“Huh! I'm sure I locked it when I left.”
Used to express doubt or confusion.
“Huh? Where did they go?”
(with rising pitch) Used to reinforce a question.
“Where were you last night? Huh?”
Synonyms: come again, pardon, what