sweet Fanny Adams vs nada

sweet Fanny Adams and nada both are nouns.

Word	Noun	Adjective	Verb	Adverb
sweet Fanny Adams	Yes	No	No	No
nada	Yes	No	No	No

As nouns, nada is a hypernym of sweet Fanny Adams; that is, nada is a word with a broader meaning than sweet Fanny Adams:

sweet Fanny Adams: little or nothing at all
nada: a quantity of no importance; thing (object:), singular, negative pronoun; pronoun, thing, singular; quantifier: negative existential

Other hypernyms of sweet Fanny Adams include aught, cipher, cypher, goose egg, naught, nil, nix, nothing, null, zero, zilch, zip, zippo.

sweet Fanny Adams (noun)	nada (noun)
little or nothing at all	a quantity of no importance; thing (object:), singular, negative pronoun; pronoun, thing, singular; quantifier: negative existential