The meaning of MAIN is physical strength : force —used in the phrase with might and main. How to use main in a sentence.

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MAIN definition: 1. larger, more important, or having more influence than others of the same type: 2. a large pipe…. Learn more.

main (meɪn) adj (prenominal) 1. chief or principal in rank, importance, size, etc 2. sheer or utmost (esp in the phrase by main force)

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.

Main definition: Most important; principal.

Main refers to the primary or most important aspect or part of something. It signifies the central or principal focus, significance, or purpose of a subject or object.