morgue vs dead room

morgue and dead room both are nouns.

Word	Noun	Adjective	Verb	Adverb
morgue	Yes	No	No	No
dead room	Yes	No	No	No

As nouns, morgue and dead room are synonyms defined as:

morgue and dead room: a building (or room) where dead bodies are kept before burial or cremation

Other synonyms of morgue include mortuary.

morgue (noun)	dead room (noun)
a building (or room) where dead bodies are kept before burial or cremation	a building (or room) where dead bodies are kept before burial or cremation