SISS
Siss, n.

Defn: A hissing noise. [Colloq. U. S.]

SISSOO
Sis*soo", n. Etym: [Hind. sis.] (Bot.)

Defn: 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.

SIST
Sist, v. t. Etym: [L. sistere to bring to a stand, to stop.]

1. (Scots Law)

Defn: To stay, as judicial proceedings; to delay or suspend; to stop.

2. To cause to take a place, as at the bar of a court; hence, to cite; to summon; to bring into court. [Scot.] Some, however, have preposterously sisted nature as the first or generative principle. Sir W. Hamilton.

SIST
Sist, n. (Scots Law)

Defn: A stay or suspension of proceedings; an order for a stay of proceedings. Burril.