lading vs shipment

lading and shipment both are nouns.

Word	Noun	Adjective	Verb	Adverb
lading	Yes	No	No	No
shipment	Yes	No	No	No

As nouns, lading and shipment are synonyms defined as:

Other synonyms of lading include cargo, consignment, freight, load, loading, payload.

lading (noun)	shipment (noun)
goods carried by a large vehicle	the act of sending off something
	goods carried by a large vehicle