To make available for use; provide: Does the hotel supply towels? To provide something necessary or desired to; furnish or equip: supplied the players with uniforms. See Synonyms at furnish. To have as a necessary or desirable feature: a crime scene that supplied valuable evidence. To fill sufficiently; satisfy: supply a need. To make up for (a deficiency, for example); compensate for. The act of supplying: funds for the supply of the expedition. An amount available or sufficient for a given use; stock: Our supply of milk is low. often Materials or provisions stored and dispensed when needed. Economics The amount of a commodity available for meeting a demand or for purchase at a given price.