1hiss 
/ˈhɪs/ noun
plural hiss·es /ˈhɪs/ noun [count] : a sound like a long “s”
▪ The air escaped from the balloon with a hiss. ▪ the hiss of a snake ▪ the boos and hisses of the audience
▪ The air escaped from the balloon with a hiss. ▪ the hiss of a snake ▪ the boos and hisses of the audience
