Meaning of with might and main in English with might and main idiom old-fashioned literary Add to word list Add to word list with as much effort as possible: They shouted with might and main but nobody came to rescue them.

Strenuously, vigorously, as in She pulled on the rope with all her might and main. This expression is redundant, since the noun main also means “strength” or “power.”

with might and main idiom old-fashioned literary Add to word list with as much effort as possible: They shouted with might and main but nobody came to rescue them.