Dictionary
su•pre•mo
Pronunciation: (su-prē'mō, soo-), [key]—
n.,
—pl. -mos.
Chiefly Brit. Informal.
1. the person in charge; chief.
2. a person of supreme or complete power, authority, ability, etc.:
His victory makes him the new chess supremo. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.