sustenance vs puree

sustenance and puree both are nouns.

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

As nouns, puree is a hyponym of sustenance; that is, puree is a word with a more specific, narrower meaning than sustenance:

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

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