A sibilant sound, such as that made by a snake or escaping steam; an unvoiced fricative.

An expression of disapproval made using such a sound.

To make a hissing sound.

“As I started to poke it, the snake hissed at me.”

To condemn or express contempt (for someone or something) by hissing.

“The crowd booed and hissed her off the stage.”

To utter (something) with a hissing sound.