- 1[intransitive] hiss (at somebody/something) to make a sound like a long “s” The steam escaped with a loud hissing noise. The snake lifted its head and hissed.
- 2[transitive, intransitive] hiss (somebody/something) hiss (somebody/something + adv./prep.) to make a sound like a long “s” to show disapproval of someone or something, especially an actor or a speaker He was booed and hissed off the stage.
- 3[intransitive, transitive] to say something in a quiet angry voice hiss at somebody He hissed at them to be quiet. + speech “Leave me alone!” she hissed.
NAmE//hɪs//Verb Forms present simple I / you / we / they hiss
he / she / it hisses
past simple hissed
-ing form hissing