supermom vs female parent

supermom and female parent both are nouns.

Word	Noun	Adjective	Verb	Adverb
supermom	Yes	No	No	No
female parent	Yes	No	No	No

As nouns, female parent is a hypernym of supermom; that is, female parent is a word with a broader meaning than supermom:

supermom: an informal term for a mother who can combine childcare and full-time employment
female parent: a woman who has given birth to a child (also used as a term of address to your mother)

Other hypernyms of supermom include mother.

supermom (noun)	female parent (noun)
an informal term for a mother who can combine childcare and full-time employment	a woman who has given birth to a child (also used as a term of address to your mother)