subsistence vs survival

subsistence and survival both are nouns.

Word	Noun	Adjective	Verb	Adverb
subsistence	Yes	No	No	No
survival	Yes	No	No	No

As nouns, survival is a hypernym of subsistence; that is, survival is a word with a broader meaning than subsistence:

Other hypernyms of subsistence include endurance.

subsistence (noun)	survival (noun)
minimal (or marginal) resources for subsisting	something that survives
the state of existing in reality; having substance	a natural process resulting in the evolution of organisms best adapted to the environment
a means of surviving	a state of surviving; remaining alive