wall vs room

wall and room both are nouns.

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

wall (noun)	room (noun)
an architectural partition with a height and length greater than its thickness; used to divide or enclose an area or to support another structure	an area within a building enclosed by walls and floor and ceiling
an embankment built around a space for defensive purposes	the people who are present in a room
a masonry fence (as around an estate or garden)	space for movement
a layer of material that encloses space	opportunity for
(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

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