infinite vs phase space

infinite and phase space both are nouns.

Word	Noun	Adjective	Verb	Adverb
infinite	Yes	Yes	No	No
phase space	Yes	No	No	No

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

infinite: the unlimited expanse in which everything is located
phase space: (physics) an ideal space in which the coordinate dimensions represent the variables that are required to describe a system or substance

Other hyponyms of infinite include absolute space, mathematical space, topological space, outer space, space.

infinite (noun)	phase space (noun)
the unlimited expanse in which everything is located	(physics) an ideal space in which the coordinate dimensions represent the variables that are required to describe a system or substance

infinite (adjective)	phase space (adjective)
having no limits or boundaries in time or space or extent or magnitude
(of verbs) not having tense, person, or number (as a participle or gerund or infinitive)
total and all-embracing
too numerous to be counted