- Principal; prime; chief; leading; of chief or principal importance. [from 15th c.]
- (nautical) Belonging to or connected with the principal mast in a vessel.
- (obsolete) Great in size or degree; vast; strong; powerful; important.
- Full; undivided; sheer (of strength, force etc.). [from 16th c.]
- Principal or chief in size or extent; largest; consisting of the largest part; most important by reason or size or strength.
"main timbers; main branch of a river; main body of an army"
- (dialectal) Big; angry.
- (Britain, dialectal) Very; very much; greatly; mightily; extremely; exceedingly.
- A large pipe or cable providing utility service to a building or area, such as water main or electric main. [from 17th c.]
- A stake played for at dice.
- A main-hamper, or fruit basket.
- (obsolete, except in might and main) Strength; power; force; violent effort. [from 9th c.]
- (now poetic) The high seas. [from 16th c.]
- A hand or match in a game of dice.
- A match at cockfighting.
- (now archaic, US dialectal) The mainland. [from 16th c.]
- (nautical) The mainsail. [from 17th c.]
- The largest throw in a match at dice; a throw at dice within given limits, as in the game of hazard.
- That which is chief or principal; the chief or main portion; the gross; the bulk; the greater part.