Definitions

1. interjection

an expression of amusement, laughter, or scorn

“He let out a loud ‘hah’ at the comedian’s punchline.”

2. noun

a laugh or an expression of scorn

“The room erupted in a collective ‘hah’ at the news.”

3. verb

to laugh or express scorn

“The crowd began to hah at the absurdity of the situation.”