Definition of "Track" :

noun: the act of participating in an athletic competition involving running on a track

noun: a course over which races are run

noun: any road or path affording passage especially a rough one

noun: a bar or pair of parallel bars of rolled steel making the railway along which railroad cars or other vehicles can roll

noun: a pair of parallel rails providing a runway for wheels

noun: a groove on a phonograph recording

noun: (computer science) one of the circular magnetic paths on a magnetic disk that serve as a guide for writing and reading data

noun: an endless metal belt on which tracked vehicles move over the ground

noun: evidence pointing to a possible solution

noun: a distinct selection of music from a recording or a compact disc

"The title track of the album."

noun: a line or route along which something travels or moves

"The track of an animal."

verb: make tracks upon

verb: travel across or pass over

verb: go after with the intent to catch

verb: carry on the feet and deposit

"Track mud into the house."

verb: observe or plot the moving path of something

"Track a missile."