ma vs mummy

ma and mummy both are nouns.

Word	Noun	Adjective	Verb	Adverb
ma	Yes	No	No	No
mummy	Yes	No	No	No

As nouns, ma and mummy are synonyms defined as:

Other synonyms of ma include mama, mamma, mammy, mom, momma, mommy, mum, mumma.

ma (noun)	mummy (noun)
informal terms for a mother	a body embalmed and dried and wrapped for burial (as in ancient Egypt)
	informal terms for a mother