sustenance vs amenities

sustenance and amenities both are nouns.

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

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

Other hyponyms of sustenance include comforts, conveniences, creature comforts, maintenance, meal ticket, subsistence.

sustenance (noun)	amenities (noun)
the act of sustaining life by food or providing a means of subsistence	things that make you comfortable and at ease
a source of materials to nourish the body
the financial means whereby one lives