n a line or route along which something travels or moves n evidence pointing to a possible solution n a pair of parallel rails providing a runway for wheels n a course over which races are run n a distinct selection of music from a recording or a compact disc n an endless metal belt on which tracked vehicles move over the ground n (computer science) one of the circular magnetic paths on a magnetic disk that serve as a guide for writing and reading data n a groove on a phonograph recording n a bar or pair of parallel bars of rolled steel making the railway along which railroad cars or other vehicles can roll n any road or path affording passage especially a rough one n the act of participating in an athletic competition involving running on a track v carry on the feet and deposit v observe or plot the moving path of something v go after with the intent to catch v travel across or pass over v make tracks upon