Main Entry: hiss

Pronunciation: \ˈhis\

Function: verb

Etymology: Middle English, of imitative origin

Date: 14th century

intransitive verb : to make a sharp sibilant sound <the crowd hissed in disapproval> <hissing steam>transitive verb 1 : to express disapproval of by hissing <hissed the performers off the stage>
2 : to utter or whisper angrily or threateningly and with a hiss

— hiss noun

— hiss·er noun