York vs royal family

York and royal family both are nouns.

Word	Noun	Adjective	Verb	Adverb
York	Yes	No	No	No
royal family	Yes	No	No	No

As nouns, royal family is a hypernym of York; that is, royal family is a word with a broader meaning than York:

York: the English royal house (a branch of the Plantagenet line) that reigned from 1461 to 1485; its emblem was a white rose
royal family: royal persons collectively

Other hypernyms of York include dynasty, royal house, royal line, royalty.

York (noun)	royal family (noun)
the English royal house (a branch of the Plantagenet line) that reigned from 1461 to 1485; its emblem was a white rose	royal persons collectively