room vs living space

room and living space both are nouns.

Word	Noun	Adjective	Verb	Adverb
room	Yes	No	Yes	No
living space	Yes	No	No	No

As nouns, living space is a hyponym of room; that is, living space is a word with a more specific, narrower meaning than room:

room: space for movement
living space: space sought for occupation by a nation whose population is expanding

room (noun)	living space (noun)
an area within a building enclosed by walls and floor and ceiling	space sought for occupation by a nation whose population is expanding
the people who are present in a room
space for movement
opportunity for

room (verb)	living space (verb)
live and take one's meals at or in