chief in size, extent, or importance:He had the main part in a play.
Grammar(in a sentence) of or relating to the clause that can stand by itself; independent:In the sentence I'll see you when I get home, the main clause is I'll see you.
chief in size, extent, or importance; principal; leading:the company's main office; the main features of a plan.
sheer; utmost, as strength or force:to lift a stoneby main force.
of or pertaining to a broad expanse:main sea.
Grammarsyntactically independent; capable of use in isolation. Cf. dependent (def. 4), independent (def. 14), main clause.
[Naut.]
Nauticalof or pertaining to a mainmast.
Nauticalnoting or pertaining to a sail, yard, boom, etc., or to any rigging belonging to a mainmast.
Nauticalnoting any stay running aft and upward to the head of a mainmast:main topmast stay.
[Obs.]
having or exerting great strength or force; mighty.
having momentous or important results; significant.
n.
Civil Engineeringa principal pipe or duct in a system used to distribute water, gas, etc.
physical strength, power, or force:to struggle with might and main.
the chief or principal part or point:The main of their investments was lost during the war.
[Literary.]the open ocean; high sea:the bounding main.
the mainland.
Idiomsin the main, for the most part; chiefly:In the main, the novel was dull reading.
adv.
Dialect Terms[South Midland U.S.](chiefly Appalachian). very; exceedingly:The dogs treed a main big coon.
v.i., v.t.
Slang Termsmainline.
Old Norse megenn, megn strong, partly independent use of Old English mægen (noun, nominal) taken as an adjective, adjectival in compounds, as in mægen-weorc, literally, work of might
bef. 900; (noun, nominal) Middle English meyn, mayn strength, power, Old English mægen, cognate with Old Norse megin(n), megn strength; (adjective, adjectival) Middle English mayn, partly
1.See corresponding entry in Unabridged cardinal, prime, paramount, primary, capital.
2.See corresponding entry in Unabridged pure, direct.
7.See corresponding entry in Unabridged conduit.
8.See corresponding entry in Unabridged might.
1.See corresponding entry in Unabridged secondary, least.
8.See corresponding entry in Unabridged weakness.
main2(mān),USA pronunciationn.
a cockfighting match.
1560–70; perh. special use of main1; compare main chance
Main(mān; Ger. mīn),USA pronunciationn.
Place Namesa river in central and W Germany, flowing W from the Bohemian Forest in N Bavaria into the Rhine at Mainz. 305 mi. (490 km) long.