Sustenance1. (n.) That which supports life; food; provisions; means of living; as, the city has ample sustenance.
2. (n.) The act of sustaining; support; maintenance; subsistence; as, the sustenance of the body; the sustenance of life.
Thesaurus Entries
TLC, aid, aliment, alimentation, alimony, backing, board, bread, bread and butter, care, carriage, carrying, cheer, chow, comestibles, continualness, continuance, continuation, continuity, creature comfort, cuisine, daily bread, eatables, eats, economic support, edibles, endowment, endurance, extension, fare, fast food, feast, food, food and drink, foodstuff, foodstuffs, groceries, grub, health food, ingesta, junk food, keep, kitchen stuff, lengthening, livelihood, living, maintenance, manna, meat, moral support, mothering, nosh, nourishment, nurture, nutriment, pabulum, pap, perpetuation, perseverance, persistence, price support, progress, progression, prolongation, protraction, provender, provision, provisions, psychological support, pursuance, rations, refection, refreshment, reliance, repetition, run, salt, scoff, security blanket, spread, staying power, straight course, subsidization, subsidy, subsistence, subvention, support, supportive relationship, supportive therapy, sustained action, sustaining, sustainment, sustentation, table, tender loving care, tucker, uninterrupted course, unremittingness, upholding, upkeep, viands, victuals, vittles, way