nihil vs goose egg

nihil and goose egg both are nouns.

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

As nouns, goose egg is a hypernym of nihil; that is, goose egg is a word with a broader meaning than nihil:

nihil: (Latin) nil; nothing (as used by a sheriff after an unsuccessful effort to serve a writ)
goose egg: a quantity of no importance; thing (object:), singular, negative pronoun; pronoun, thing, singular; quantifier: negative existential

Other hypernyms of nihil include aught, cipher, cypher, nada, naught, nil, nix, nothing, null, zero, zilch, zip, zippo.

nihil (noun)	goose egg (noun)
(Latin) nil; nothing (as used by a sheriff after an unsuccessful effort to serve a writ)	a quantity of no importance; thing (object:), singular, negative pronoun; pronoun, thing, singular; quantifier: negative existential