dispatch case vs dispatch box

dispatch case and dispatch box both are nouns.

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

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

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

dispatch case (noun)	dispatch box (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