Force —used in the phrase with might and main How to use main in a sentence. Main (meɪn) adj (prenominal) 1 Chief or principal in rank, importance, size, etc 2 Sheer or utmost (esp in the phrase by main force) Chief in size, extent, importance, etc.
Specif., designating a large central unit on which subsidiaries or branches depend the main post office The main thing is to keep calm and don’t get angry The main social event of the summer was a dance and reception. Definition of main adjective in oxford advanced learner's dictionary Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Physical strength, power, or force
The chief or principal part or point The main of their investments was lost during the war.
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