goose egg vs zippo

goose egg and zippo both are nouns.

Word	Noun	Adjective	Verb	Adverb
goose egg	Yes	No	No	No
zippo	Yes	No	No	No

As nouns, goose egg and zippo are synonyms defined as:

goose egg and zippo: a quantity of no importance; thing (object:), singular, negative pronoun; pronoun, thing, singular; quantifier: negative existential

Other synonyms of goose egg include aught, cipher, cypher, nada, naught, nil, nix, nothing, null, zero, zilch, zip.

goose egg (noun)	zippo (noun)
a quantity of no importance; thing (object:), singular, negative pronoun; pronoun, thing, singular; quantifier: negative existential	a quantity of no importance; thing (object:), singular, negative pronoun; pronoun, thing, singular; quantifier: negative existential