• Siss Definition & Synonyms
- (n.) A hissing noise.
- (v. i.) To make a hissing sound; as, a flatiron hot enough to siss when touched with a wet finger.
• Sis Definition & Synonyms
- (n.) Six. See Sise.
- (n.) A colloquial abbreviation of Sister.
• Sissoo Definition & Synonyms
- (n.) A leguminous tree (Dalbergia Sissoo) of the northern parts of India; also, the dark brown compact and durable timber obtained from it. It is used in shipbuilding and for gun carriages, railway ties, etc.