sustenance vs victuals

sustenance and victuals both are nouns.

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

As nouns, sustenance and victuals are synonyms defined as:

Other synonyms of sustenance include aliment, alimentation, nourishment, nutriment, nutrition.

sustenance (noun)	victuals (noun)
the act of sustaining life by food or providing a means of subsistence	any substance that can be used as food
a source of materials to nourish the body	a source of materials to nourish the body
the financial means whereby one lives	a stock or supply of foods