Huh (interjection)

1. Used to indicate that one has not understood something or that one is not sure whether one has heard something correctly.
2. Used to indicate one's lack of comprehension.

Origin:

Representing a sound made to indicate confusion or lack of understanding.

Examples:

1. I'm sorry, could you repeat that? Huh?
2. He said he would be here at 8 o"clock. Huh, I wonder why he"s late.
3. I don"t understand what you"re trying to say. Huh?
4. He said he would call me back. Huh, I wonder why he hasn't.
5. She said she would meet us at the restaurant. Huh, I wonder where she is.