subsistence vs being

subsistence and being both are nouns.

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

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

Other hypernyms of subsistence include beingness, existence, face of the earth.

subsistence (noun)	being (noun)
minimal (or marginal) resources for subsisting	a living thing that has (or can develop) the ability to act or function independently
the state of existing in reality; having substance	the state or fact of existing
a means of surviving