We found one dictionary that defines the word with all ones might and main:

General (1 matching dictionary)

1. With all one's might and main: Dictionary.com

▸ Words similar to with all ones might and main ▸ Usage examples for with all ones might and main ▸ Idioms related to with all ones might and main ▸ Wikipedia articles (New!) ▸ Words that often appear near with all ones might and main ▸ Rhymes of with all ones might and main ▸ Invented words related to with all ones might and main