promenade deck vs awning deck

promenade deck and awning deck both are nouns.

Word	Noun	Adjective	Verb	Adverb
promenade deck	Yes	No	No	No
awning deck	Yes	No	No	No

As nouns, promenade deck and awning deck are synonyms defined as:

Other synonyms of promenade deck include hurricane deck, hurricane roof.

promenade deck (noun)	awning deck (noun)
a deck at the top of a passenger ship	a deck at the top of a passenger ship