cargo deck vs cargo hold

cargo deck and cargo hold both are nouns.

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

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

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

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

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