n. A gradual decrease of power or capacity.n. A candle, especially a very slender candle; any device for giving light by the agency of a wick coated with combustible matter.Long and becoming slenderer toward the point; becoming small toward one end.Diminished; reduced.To become taper; become gradually slenderer; grow less in diameter; diminish in one direction.To diminish; grow gradually less.To spring up in or as in a tall, tapering form.To stop slowly or by degrees; cease gradually.To cause to taper; make gradually smaller, especially in diameter; cause to diminish toward a point.n. Tapering form; gradual diminution of thickness in an elongated object; that which possesses a tapering form: as, the taper of a spire.