cheese tray vs tray

cheese tray and tray both are nouns.

Word	Noun	Adjective	Verb	Adverb
cheese tray	Yes	No	No	No
tray	Yes	No	No	No

As nouns, tray is a hypernym of cheese tray; that is, tray is a word with a broader meaning than cheese tray:

cheese tray: tray on which cheeses are served
tray: an open receptacle for holding or displaying or serving articles or food

cheese tray (noun)	tray (noun)
tray on which cheeses are served	an open receptacle for holding or displaying or serving articles or food