Definition of: hiss

(his) noun
1. The prolonged sound of s, as that made by escaping air.
2. Such a sound made to express disapproval, hatred, etc.
—v.i.
1. To make or emit a hiss or hisses.
2. To express disapproval or hatred by hissing.
—v.t.
3. To express disapproval or hatred of by hissing.
4. To express by means of a hiss or hisses.
5. To pursue, drive off, silence, etc., by hissing: usually with off, down, etc. [OE hyscan jeer at]