[noun] a line or route along which something travels or moves; "the hurricane demolished houses in its path"; "the track of an animal"; "the course of the river" Synonyms: path, course
[noun] evidence pointing to a possible solution; "the police are following a promising lead"; "the trail led straight to the perpetrator" Synonyms: lead, trail
[noun] a pair of parallel rails providing a runway for wheels
[noun] a distinct selection of music from a recording or a compact disc; "he played the first cut on the cd"; "the title track of the album" Synonyms: cut
