• A hand or match at dice. • A stake played for at dice. • The largest throw in a match at dice; a throw at dice within given limits, as in the game of hazard. • A match at cockfighting. • A main-hamper. • Strength; force; might; violent effort. • The chief or principal part; the main or most important thing. • The great sea, as distinguished from an arm, bay, etc. ; the high sea; the ocean. • The continent, as distinguished from an island; the mainland. • principal duct or pipe, as distinguished from lesser ones; esp. (Engin.), a principal pipe leading to or from a reservoir; as, a fire main. • Very or extremely strong. • Vast; huge. • Unqualified; absolute; entire; sheer. • Principal; chief; first in size, rank, importance, etc. • Important; necessary. • Very; extremely; as, main heavy.