sustenance

n. act of sustaining or being sustained; nourishment, food; livelihood, maintenance, support, upkeep

Sustenance can refer to any means of subsistence or livelihood;foodany subsistence economy: see list of subsistence techniqueshunting-gatheringanimal husbandrysubsistence agriculture
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(n.)
The act of sustaining; support; maintenance; subsistence; as, the sustenance of the body; the sustenance of life.
  

(n.)
That which supports life; food; victuals; provisions; means of living; as, the city has ample sustenance.
  

Noun
1. a source of materials to nourish the body
(synonym) nutriment, nourishment, nutrition, aliment, alimentation, victuals
(hypernym) food, nutrient
(hyponym) milk
(derivation) nourish, nurture, sustain
2. the financial means whereby one lives; "each child was expected to pay for their keep"; "he applied to the state for support"; "he could no longer earn his own livelihood"
(synonym) support, keep, livelihood, living, bread and butter
(hypernym) resource
(hyponym) comforts, creature comforts, amenities, conveniences
(derivation) sustain, keep, maintain
3. the act of sustaining life by food or providing a means of subsistence; "they were in want of sustenance"; "fishing was their main sustainment"
(synonym) sustentation, sustainment, maintenance, upkeep
(hypernym) support
(derivation) prolong, sustain, keep up