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    main
    [mān]
    noun
    main (noun) · mains (plural noun) · the main (noun)
    1. a principal pipe carrying water or gas to buildings, or taking sewage from them:
      "a faulty gas main"
      • a principal cable carrying electricity.
    2. archaic
      literary
      (the main)
      the open ocean.
    3. nautical
      short for mainsail or mainmast
    Origin
    Old English mægen: (with the sense ‘physical force’), from a Germanic base also seen in may and might.
    main
    [mān]
    noun
    main (noun) · mains (plural noun)
    1. (in the game of hazard) a number (5, 6, 7, 8, or 9) called by a player before dice are thrown.
    2. historical
      a match between gamecocks.
    Origin
    late 16th century: probably from the phrase main chance.
    Main
    [mīn]
    definition
    1. a river of southwestern Germany that rises in northern Bavaria and flows west for 310 miles (500 km), through Frankfurt to meet the Rhine River at Mainz.
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    1. The chief or largest part: His ideas are, in the main, impractical. 2. The principal pipe or conduit in a system for conveying water, gas, oil, or other utility. 3. Physical strength: fought with might and main. 4. A mainland. 5. The open ocean. 6. Nautical a. A mainsail. b. A mainmast. 7.
    2. The mains are the pipes which supply gas or water to buildings, or which take sewage away from them. ...the water supply from the mains. The capital has been without mains water since Wednesday night. The mains are the wires which supply electricity to buildings, or the place where the wires end inside the building.
    of or relating to a mainmast. noting or pertaining to a sail, yard, boom, etc., or to any rigging belonging to a mainmast. main topmast stay. Obsolete. having or exerting great strength or force; mighty. having momentous or important results; significant. to struggle with might and main. The main of their investments was lost during the war.
    Get Word of the Day daily email! The meaning of MAIN is physical strength : force —used in the phrase with might and main. How to use main in a sentence.
  3. WEB4 days ago · Learn the meaning, pronunciation, and usage of the word 'main' in different contexts. Find synonyms, antonyms, idioms, and examples of 'main' as an adjective, noun, or adverb.