room vs wall

room and wall both are nouns.

Word	Noun	Adjective	Verb	Adverb
room	Yes	No	Yes	No
wall	Yes	No	Yes	No

room (noun)	wall (noun)
an area within a building enclosed by walls and floor and ceiling	an architectural partition with a height and length greater than its thickness; used to divide or enclose an area or to support another structure
the people who are present in a room	an embankment built around a space for defensive purposes
space for movement	a masonry fence (as around an estate or garden)
opportunity for	a layer of material that encloses space
	(anatomy) a layer (a lining or membrane) that encloses a structure
	anything that suggests a wall in structure or function or effect
	a vertical (or almost vertical) smooth rock face (as of a cave or mountain)
	a difficult or awkward situation

room (verb)	wall (verb)
live and take one's meals at or in	surround with a wall in order to fortify