zippo vs zilch

zippo and zilch both are nouns.

Word	Noun	Adjective	Verb	Adverb
zippo	Yes	No	No	No
zilch	Yes	No	No	No

As nouns, zippo and zilch are synonyms defined as:

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

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

zippo (noun)	zilch (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