1. (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.

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