Definition of "Spur" :
noun: a railway line connected to a trunk line
noun: a sharp prod fixed to a rider's heel and used to urge a horse onward
"Cowboys know not to squat with their spurs on."
noun: a verbalization that encourages you to attempt something
noun: tubular extension at the base of the corolla in some flowers
noun: any sharply pointed projection
verb: goad with spurs
"The rider spurred his horse."
verb: equip with spurs
verb: strike with a spur
verb: give heart or courage to
verb: incite or stimulate
"The Academy was formed to spur research."