sweet Fanny Adams vs zippo

sweet Fanny Adams and zippo both are nouns.

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

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

sweet Fanny Adams: little or nothing at all
zippo: 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, nada, naught, nil, nix, nothing, null, zero, zilch, zip.

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