To furnish with what is wanted; afford or furnish a sufficiency for; make provision for; satisfy; provide: with with before that which is provided: as, to supply the poor with clothing.To serve instead of; take the place of; repair, as a vacancy or loss; fill: especially applied to places that have become vacant; specifically, of a pulpit, to occupy temporarily.To give; grant; afford; provide; furnish.To replenish or strengthen as any deficiency occurs; reinforce.n. The act of supplying what is wanted.n. That which is supplied; means of provision or relief; sufficiency for use or need; a quantity of something supplied or on hand; a stock; a store.n. In political economics, the amount or quantity of any commodity that is on the market and is available for purchase.n. plural Necessaries collected and held for distribution and use; stores: as, the army was cut off from its supplies.n. plural A grant of money provided by a national legislature to meet the expenses of government.n. Additional troops; reinforcements; succors.n. A person who temporarily takes the place of another; a substitute; specifically, a clergyman who officiates in a vacant charge, or in the temporary absence of the pastor.n. the engineer corps, to furnish portable military bridges, pontoons, intrenching-tools, torpedoes, and torpedo-supplies;n. the quartermaster's department, which furnishes clothing, fuel, forage, quarters, transportation, and camp and garrison equipage;n. the subsistence department, which furnishes the provisions; andn. the medical department, which provides medicines, medical and hospital stores, etc.