puree vs sustenance

puree and sustenance both are nouns.

Word	Noun	Adjective	Verb	Adverb
puree	Yes	No	Yes	No
sustenance	Yes	No	No	No

As nouns, sustenance is a hypernym of puree; that is, sustenance is a word with a broader meaning than puree:

Other hypernyms of puree include aliment, alimentation, nourishment, nutriment, nutrition, victuals.

puree (noun)	sustenance (noun)
food prepared by cooking and straining or processed in a blender	the act of sustaining life by food or providing a means of subsistence
	a source of materials to nourish the body
	the financial means whereby one lives

puree (verb)	sustenance (verb)
rub through a strainer or process in an electric blender