slop chest vs commissary

slop chest and commissary both are nouns.

Word	Noun	Adjective	Verb	Adverb
slop chest	Yes	No	No	No
commissary	Yes	No	No	No

As nouns, commissary is a hypernym of slop chest; that is, commissary is a word with a broader meaning than slop chest:

slop chest: commissary maintained aboard merchant ships to sell merchandise to the crew
commissary: a retail store that sells equipment and provisions (usually to military personnel)

slop chest (noun)	commissary (noun)
commissary maintained aboard merchant ships to sell merchandise to the crew	a retail store that sells equipment and provisions (usually to military personnel)
	a snack bar in a film studio