Synonyms: hushing, hiss, hissing, sibilation, fizzle
Definition: a fricative sound (especially as an expression of disapproval)
Usage: the performers could not be heard over the hissing of the audience
Similar words: noise
Definition: sound of any kind (especially unintelligible or dissonant sound)
Usage: he enjoyed the street noises; they heard indistinct noises of people talking; during the firework display that ended the gala the noise reached 98 decibels