(Australia, Canada, New Zealand, US) Sweatpants.

(rail transport, US) A pair of formed steel rails, separated and supported usually on wooden or concrete ties or sleepers, forming a track along which flange-wheeled railroad vehicles may travel.

(Canada, US, informal) A career path involving working arrangements provided for mothers and prospective mothers, generally more flexible and allowing shorter hours.

(softball, baseball) The dirt or other material on the edge of a baseball or softball field that warns a player that he or she is approaching the fence, especially the portion in the outfield.

(sports, chiefly racing) The lane or track nearest to the interior. / (figuratively) Any advantage.

Used other than figuratively or idiomatically: see track, record.

(music, film) An audio track having the same name as the album, EP or film that it is taken from.

A pair of parallel rails along which a railway train runs.

simple past tense and past participle of fast track

Using the correct general approach to a particular task or problem; pursuing something in a promising way.