lebensraum vs room

lebensraum and room both are nouns.

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

As nouns, room is a hypernym of lebensraum; that is, room is a word with a broader meaning than lebensraum:

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

Other hypernyms of lebensraum include elbow room, way.

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

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