tabby vs Felis domesticus

tabby and Felis domesticus both are nouns.

Word	Noun	Adjective	Verb	Adverb
tabby	Yes	Yes	No	No
Felis domesticus	Yes	No	No	No

As nouns, Felis domesticus is a hypernym of tabby; that is, Felis domesticus is a word with a broader meaning than tabby:

Other hypernyms of tabby include domestic cat, Felis catus, house cat.

As nouns, Felis domesticus is a hypernym of tabby; that is, Felis domesticus is a word with a broader meaning than tabby:

Other hypernyms of tabby include domestic cat, Felis catus, house cat.

tabby (noun)	Felis domesticus (noun)
a cat with a grey or tawny coat mottled with black	any domesticated member of the genus Felis
female cat

tabby (adjective)	Felis domesticus (adjective)
having a grey or brown streak or a pattern or a patchy coloring; used especially of the patterned fur of cats