sibilate 4verbdomain: v speakingPrinceton WordNet [ver.3.1]EnglishDefinitionmake a sharp hissing sound, as if to show disapprovalReport errorPath to highest hypernymMorphologySynset graphSynonymshiss 1make a sharp hissing sound, as if to show disapprovalsiss 2make a sharp hissing sound, as if to show disapprovalsizz 2make a sharp hissing sound, as if to show disapproval