quiche Lorraine vs quiche

quiche Lorraine and quiche both are nouns.

Word	Noun	Adjective	Verb	Adverb
quiche Lorraine	Yes	No	No	No
quiche	Yes	No	No	No

As nouns, quiche is a hypernym of quiche Lorraine; that is, quiche is a word with a broader meaning than quiche Lorraine:

quiche Lorraine: quiche made with cheese and bacon
quiche: a tart filled with rich unsweetened custard; often contains other ingredients (as cheese or ham or seafood or vegetables)

quiche Lorraine (noun)	quiche (noun)
quiche made with cheese and bacon	a tart filled with rich unsweetened custard; often contains other ingredients (as cheese or ham or seafood or vegetables)