Track

The word track can have different meanings:

Rail tracks; see also camera dolly
Race track
Trail, informal road or pathway
Athletics, track and field, or just "track" in the US
Caterpillar track, a belt providing motive traction for a tank or bulldozer
Event reconstruction of a charged particle's path; see also particle accelerator, particle detector
Song or other distinct section of a sound recording
Copper trace or line on a printed circuit board
Circular segment of a hard disk or other storage media (see also cylinder-head-sector)
Wheel gauge of a vehicle, or rail gauge
A synonym for cricket pitch.
An ocean track is used in flight planning for routing aircraft across an ocean.