transshipment vs conveyance

transshipment and conveyance both are nouns.

Word	Noun	Adjective	Verb	Adverb
transshipment	Yes	No	No	No
conveyance	Yes	No	No	No

As nouns, conveyance is a hypernym of transshipment; that is, conveyance is a word with a broader meaning than transshipment:

Other hypernyms of transshipment include transfer, transferral, transport, transportation.

transshipment (noun)	conveyance (noun)
the transfer from one conveyance to another for shipment	act of transferring property title from one person to another
	the act of moving something from one location to another
	something that serves as a means of transportation
	the transmission of information
	document effecting a property transfer