Siss

noun, verb, slang

noun, verb, slang ·Moderate ·College level

Definitions

Noun
  1. 1
    A hissing noise. colloquial
Verb
  1. 1
    To make a hissing sound. colloquial, intransitive

    "a flat-iron hot enough to siss when touched with a wet finger"

  2. 2
    make a sharp hissing sound, as if to show disapproval wordnet
  3. 3
    express or utter with a hiss wordnet

Example

More examples

"a flat-iron hot enough to siss when touched with a wet finger"

Etymology

From Middle English sissen, perhaps from Middle Dutch sissen, cissen or Middle Low German sissen (“to hiss; buzz”), of imitative origin. Cognate with Dutch sissen, German Low German zissen, German zischen.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.