Definitions
1.nounA sibilant sound, such as that made by a snake or escaping steam; an unvoiced fricative.
2.nounAn expression of disapproval made using such a sound.
3.verbTo make a hissing sound."As I started to poke it, the snake hissed at me."
4.verbTo condemn or express contempt (for someone or something) by hissing."The crowd booed and hissed her off the stage."
5.verbTo utter (something) with a hissing sound.
6.verbTo move with a hissing sound."The arrow hissed through the air."
7.verbTo emit or eject (something) with a hissing sound.
8.verbTo whisper, especially angrily or urgently.