sleeper vs drawing room

sleeper and drawing room both are nouns.

Word	Noun	Adjective	Verb	Adverb
sleeper	Yes	No	No	No
drawing room	Yes	No	No	No

sleeper (noun)	drawing room (noun)
an unexpected hit	a formal room where visitors can be received and entertained
tropical fish that resembles a goby and rests quietly on the bottom in shallow water	a private compartment on a sleeping car with three bunks and a toilet
a passenger car that has berths for sleeping
one of the cross braces that support the rails on a railway track
a piece of furniture that can be opened up into a bed
pajamas with feet; worn by children
a rester who is sleeping
an unexpected achiever of success
a spy or saboteur or terrorist planted in an enemy country who lives there as a law-abiding citizen until activated by a prearranged signal