n. A master; a lord; hence, a personage of importance; an esquire; a gentleman.n. Master; lord; my lord: a respectful and formal title of address, used formerly to men of superior rank, position, or age, especially to a prince. (See sir.) Sire is or has been in present or recent use only in addressing a king or other sovereign prince.n. The master of a house; goodman; husband.n. An old person; an elder.n. A father; an ancestor; a progenitor: used also in composition: as, grandsire; great-grandsire.n. The male parent of a beast: used especially of stallions, but also of bulls, dogs, and other domestic animals: generally with dam as the female parent.n. A breed; a growth: as, a good sire of pigs, or of cabbages.To beget; procreate: used now chiefly of beasts, and especially of stallions.