Seign″ior (?), n. [OF. seignor, F. seigneur, cf. It. signore, Sp. señor from an objective case of L. senier elder. See Senior.] 1. A lord; the lord of a manor.
2. A title of honor or of address in the South of Europe, corresponding to Sir or Mr. in English.
Grand Seignior, the sultan of Turkey.