Definition of spur

• n. - A sparrow.
• n. - A tern.
• n. - An implement secured to the heel, or above the heel, of a horseman, to urge the horse by its pressure. Modern spurs have a small wheel, or rowel, with short points. Spurs were the badge of knighthood.
• n. - That which goads to action; an incitement.
• n. - Something that projects; a snag.
• n. - One of the large or principal roots of a tree.
• n. - Any stiff, sharp spine, as on the wings and legs of certain burds, on the legs of insects, etc.; especially, the spine on a cock's leg.
• n. - A mountain that shoots from any other mountain, or range of mountains, and extends to some distance in a lateral direction, or at right angles.
• n. - A spiked iron worn by seamen upon the bottom of the boot, to enable them to stand upon the carcass of a whale, to strip off the blubber.
• n. - A brace strengthening a post and some connected part, as a rafter or crossbeam; a strut.
• n. - The short wooden buttress of a post.
• n. - A projection from the round base of a column, occupying the angle of a square plinth upon which the base rests, or bringing the bottom bed of the base to a nearly square form. It is generally carved in leafage.
• n. - Any projecting appendage of a flower looking like a spur.
• n. - Ergotized rye or other grain.
• n. - A wall that crosses a part of a rampart and joins to an inner wall.
• n. - A piece of timber fixed on the bilge ways before launching, having the upper ends bolted to the vessel's side.
• n. - A curved piece of timber serving as a half to support the deck where a whole beam can not be placed.
• v. t. - To prick with spurs; to incite to a more hasty pace; to urge or goad; as, to spur a horse.
• v. t. - To urge or encourage to action, or to a more vigorous pursuit of an object; to incite; to stimulate; to instigate; to impel; to drive.
• v. t. - To put spurs on; as, a spurred boot.
• v. i. - To spur on one' horse; to travel with great expedition; to hasten; hence, to press forward in any pursuit.