MAIN, adjective [Latin magnus.] 1. Principal; chief; that which has most power in producing an effect, or which is mostly regarded in prospect; as the main branch or tributary stream of a river; the main timbers of an edifice; a main design; a main object. Our main interest is to be as happy as we can, and as long as possible. 2. Mighty; vast; as the main abyss. 3. Important; powerful. This young prince, with a train of young noblemen and gentlemen, not with any main army, came over to take possession of his patrimony. MAIN, noun Strength; force; violent effort; as in the phrase, 'with might and main ' 1. The gross; the bulk; the greater part. The main of them may be reduced to language and an improvement in wisdom-- 2. The ocean; the great sea, as distinguished from rivers, bays, sounds and the like. He fell, and struggling in the main-- 3. The continent, as distinguished from an isle. We arrived at Nantucket on Saturday, but did not reach the main till Monday. In this use of the word, land is omitted; main for main land. 4. A hamper. 5. A course; a duct. For the main in the main for the most part; in the greatest part. MAIN, noun [Latin manus, hand.] A hand at dice. We throw a merry main And lucky mains make people wise. [Not used.] 1. A match at cock fighting.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI