dispatch box vs dispatch case

dispatch box and dispatch case both are nouns.

Word	Noun	Adjective	Verb	Adverb
dispatch box	Yes	No	No	No
dispatch case	Yes	No	No	No

As nouns, dispatch box and dispatch case are synonyms defined as:

dispatch box and dispatch case: case consisting of an oblong container (usually having a lock) for carrying dispatches or other valuables

dispatch box (noun)	dispatch case (noun)
case consisting of an oblong container (usually having a lock) for carrying dispatches or other valuables	case consisting of an oblong container (usually having a lock) for carrying dispatches or other valuables