tortellini vs pasta

tortellini and pasta both are nouns.

Word	Noun	Adjective	Verb	Adverb
tortellini	Yes	No	No	No
pasta	Yes	No	No	No

As nouns, pasta is a hypernym of tortellini; that is, pasta is a word with a broader meaning than tortellini:

Other hypernyms of tortellini include alimentary paste.

tortellini (noun)	pasta (noun)
small ring-shaped stuffed pasta	shaped and dried dough made from flour and water and sometimes egg
	a dish that contains pasta as its main ingredient