cargo hold vs cargo deck

cargo hold and cargo deck both are nouns.

Word	Noun	Adjective	Verb	Adverb
cargo hold	Yes	No	No	No
cargo deck	Yes	No	No	No

As nouns, cargo hold and cargo deck are synonyms defined as:

cargo hold and cargo deck: the space in a ship or aircraft for storing cargo

Other synonyms of cargo hold include cargo area, hold, storage area.

cargo hold (noun)	cargo deck (noun)
the space in a ship or aircraft for storing cargo	the space in a ship or aircraft for storing cargo