Force —used in the phrase with might and main The chief or principal part or point 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
To struggle with might and main