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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The main thing is the most important one of several similar things in a particular situation. ...one of the main tourist areas of Amsterdam. My main concern now is to protect the children. What are the …

Main definition: Most important; principal.

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.

Mar 23, 2026 · main (not comparable) Of chief or leading importance; prime, principal. [from 15th c.] quotations

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When you describe something as main, you mean it's the most important, well-known, or biggest of its kind. The main branch of the post office in a city is usually the largest and busiest.

in the main : in general — used to say that a statement is true in most cases or at most times

When you describe something as main, you mean it's the most important, well-known, or biggest of its kind. The main branch of the post office in a city is usually the largest and busiest.