1track 
/ˈtræk/ noun
plural tracks /ˈtræk/ noun 1 [count] : a mark left on the ground by a moving animal, person, or vehicle — usually plural ▪ moose/tire tracks ▪ Dinosaur tracks were found in the canyon. 2 [count] : a path or trail that is made by people or animals walking through a field, forest, etc.
▪ Follow the track into the forest. 3 [count] a : a pair of metal bars that a train, trolley, or subway car rides along
▪ The train went off the track. = The train jumped the track. — usually plural ▪ We were walking beside the train/railroad tracks.
b US : a set of tracks at a train or subway station
▪ The train to Chicago will leave track 3. 4 [count] : an often circular path or road that is used for racing
▪ She ran a few laps around the track before the race. ▪ a dog/horse track [=a track where dog/horse races are held] — see also racetrack 5 [noncount] US : track and field
▪ He ran track in high school. — often used before another noun ▪ a track star ▪ our track team ▪ a track event/meet — see also tracksuit 6 [count] : a rod or bar that is used to hold something (such as a curtain or sliding door) — see also track lighting 7 [count] : the course along which someone or something moves or proceeds
▪ the track of a storm/bullet ▪ His brother and sister went to college, but he chose a different track. [=he chose to do something different] — see also fast track, inside track, tenure-track 8 [count] US : a course of study followed by students who have particular abilities, needs, and goals
▪ students on the college track —called also (Brit) stream 9 [count] a : a song on a record, CD, etc.
▪ Tracks 6 and 11 are particularly good. ▪ The title track [=the song with the same title as the album] is a hit. — see also soundtrack
b : a separate recording of each instrument or voice in a song
▪ Increase the volume on the drum/vocal track. — see also laugh track, soundtrack
▪ Follow the track into the forest.
▪ The train went off the track. = The train jumped the track. — usually plural ▪ We were walking beside the train/railroad tracks.
b US : a set of tracks at a train or subway station
▪ The train to Chicago will leave track 3.
▪ She ran a few laps around the track before the race. ▪ a dog/horse track [=a track where dog/horse races are held] — see also racetrack
▪ He ran track in high school. — often used before another noun ▪ a track star ▪ our track team ▪ a track event/meet — see also tracksuit
▪ the track of a storm/bullet ▪ His brother and sister went to college, but he chose a different track. [=he chose to do something different] — see also fast track, inside track, tenure-track
▪ students on the college track —called also (Brit) stream
▪ Tracks 6 and 11 are particularly good. ▪ The title track [=the song with the same title as the album] is a hit. — see also soundtrack
b : a separate recording of each instrument or voice in a song
▪ Increase the volume on the drum/vocal track. — see also laugh track, soundtrack
cover your tracks
: to hide anything that shows where you have been or what you have done so that no one can find or catch you
▪ The culprits covered their tracks well and left little evidence at the crime scene.
▪ The culprits covered their tracks well and left little evidence at the crime scene.
in your tracks
: ◊If you stop or are stopped in your tracks, you stop doing something suddenly or immediately.
▪ He stopped/froze in his tracks, turned, and came back. ▪ Her comment stopped me (dead) in my tracks. [=it surprised me very much; it caused me to stop and think]
▪ He stopped/froze in his tracks, turned, and came back. ▪ Her comment stopped me (dead) in my tracks. [=it surprised me very much; it caused me to stop and think]
keep track
: to be aware of how something is changing, what someone is doing, etc.
▪ There's so much going on that it's hard to keep track. — usually + of ▪ It's hard to keep track of what's going on. ▪ Keep track of your little brother for me, will you? ▪ It's her job to keep track of how the money is spent. ▪ I watch the news to keep track of current events.
▪ There's so much going on that it's hard to keep track. — usually + of ▪ It's hard to keep track of what's going on. ▪ Keep track of your little brother for me, will you? ▪ It's her job to keep track of how the money is spent. ▪ I watch the news to keep track of current events.
lose track
: to stop being aware of how something is changing, what someone is doing, etc.
▪ With so much going on, it's easy to lose track. — usually + of ▪ It's easy to lose track of what's going on. ▪ I'm sorry I'm late. I lost track of the time. ▪ We lost track of each other after high school.
▪ With so much going on, it's easy to lose track. — usually + of ▪ It's easy to lose track of what's going on. ▪ I'm sorry I'm late. I lost track of the time. ▪ We lost track of each other after high school.
make tracks
informal : to leave a place quickly
▪ Here comes your mom—I'd better make tracks.
▪ Here comes your mom—I'd better make tracks.
off the beaten track — see beaten
off track
: away from the main point, thought, etc.
▪ Let's not get off track. ▪ He kept the discussion from going too far off track.
▪ Let's not get off track. ▪ He kept the discussion from going too far off track.
on the right/wrong track
: following a course that will lead to success/failure
▪ Although their research is far from complete, the scientists are convinced that they are on the right track. ▪ She believes that our current foreign policy is on the wrong track.
▪ Although their research is far from complete, the scientists are convinced that they are on the right track. ▪ She believes that our current foreign policy is on the wrong track.
on track
: happening the way that you expect or want things to happen : following a schedule, routine, etc.
▪ Are we on track with the project? ▪ The project is on track. ▪ I had to get my life back on track after the accident.
▪ Are we on track with the project? ▪ The project is on track. ▪ I had to get my life back on track after the accident.
the wrong side of the tracks
: the part of a town, city, etc., where poor people live
▪ She fell in love with a boy from the wrong side of the tracks.
▪ She fell in love with a boy from the wrong side of the tracks.
— track·less /ˈtrækləs/ adjective
▪ a trackless wilderness/desert/expanse
/ˈtrækləs/ adjective ▪ a trackless wilderness/desert/expanse
