(mān) noun
1. A chief conduit or conductor, as for conveying gas, water, etc.
2. The mainland.
3. Poetic The ocean.
4. Violent effort; strength: chiefly in the phrase with might and main.
5. The chief part; the most important point.
—in (or for) the main For the most part; on the whole.
—adjective
1. First or chief in size, rank, importance, strength, extent, etc.; principal; chief; leading: the main building, the main line of a railroad, with which branch lines connect.
2. undivided; unqualified; full: by main force.
3. Designating any broad extent or expanse, as of land or sea.
4. Naut. Near or connected with the mainsail or mainmast.
5. Brit. Dial. Considerable; remarkable.
6. Obs. Vast; mighty; powerful.
—adverb Brit. Dial. Very; greatly; extremely. ♦ Homophone: mane. [OE mœgen]
—main′ly adverb

(mān) noun
1. A match of several battles at cockfighting.
2. A hand or throw of dice; also, a number selected by the caster before he throws the dice in games of hazard and craps. ♦ Homophone: mane. [? <MAIN¹, as in main chance]

(mān) Scot. v.i.
To moan.
—noun A moan. ♦ Homophone: mane.

(mān, Ger. mīn)
A river in western Germany, flowing 305 miles west to the Rhine.