mother wit vs common sense

mother wit and common sense both are nouns.

Word	Noun	Adjective	Verb	Adverb
mother wit	Yes	No	No	No
common sense	Yes	No	No	No

As nouns, mother wit and common sense are synonyms defined as:

Other synonyms of mother wit include good sense, gumption, horse sense, sense.

mother wit (noun)	common sense (noun)
sound practical judgment	sound practical judgment