1. (v. i.) To run very rapidly; to run at full speed.

2. (n.) The act of sprinting; a run of a short distance at full speed.

Le Mans air race automobile race bicycle race boat race bound burst burst of speed canter contest of speed cross-country race dash dead run derby dog race dogtrot drag race endurance race flank speed flat-out speed footrace forced draft fox-trot full gallop gallop get git hand gallop headlong rush heat heavy right foot high lope hightail hop hop along hotfoot hurdle race jog trot lap leap lope make tracks marathon marathon race match race maximum speed motorcycle race obstacle race open throttle plunge potato race race regatta relay relay race road race run rush sack race scamper scoot scud scurry scuttle shin speedway race spring sprint race spurt step step along step lively stock-car race three-legged race torch race track race trip trot walk wide-open speed yacht race