Associations to the word «Siss»

Wiktionary

SISS, noun. (US) (colloquial) A hissing noise.
SISS, verb. (US) (colloquial) (intransitive) To make a hissing sound.

Dictionary definition

SISS, verb. Express or utter with a hiss.
SISS, verb. Make a sharp hissing sound, as if to show disapproval.

Wise words

It is better wither to be silent, or to say things of more value than silence. Sooner throw a pearl at hazard than an idle or useless word; and do not say a little in many words, but a great deal in a few.
Pythagoras