shuttle vs track

shuttle

verb
  • To go back and forth between two places. 

  • To transport by shuttle or by means of a shuttle service. 

noun
  • The sliding thread holder in a sewing machine, which carries the lower thread through a loop of the upper thread, to make a lock stitch. 

  • A transport service (such as a bus or train) that goes back and forth between two or more places. 

  • A tool used to carry the woof back and forth between the warp threads on a loom. 

  • A shutter, as for a channel for molten metal. 

  • Any other item that moves repeatedly back and forth between two positions, possibly transporting something else with it between those points (such as, in chemistry, a molecular shuttle). 

  • A shuttlecock. 

  • Such a transport vehicle; a shuttle bus; a space shuttle. 

track

verb
  • To traverse; to move across. 

  • To create music using tracker software. 

  • To make sense; to be consistent with known information 

  • To monitor the movement of a person or object. 

  • To create a musical recording (a track). 

  • To exhibit good cognitive function. 

  • To discover the location of a person or object by following traces. 

  • To make tracks on or to leave in the form of tracks. 

  • To tow. 

  • To match the movement or change of a person or object. 

  • To travel so that a moving object remains in shot. 

  • To follow the tracks of. 

  • To move. 

  • To observe the (measured) state of a person or object over time. 

noun
  • A path or course laid out for a race, for exercise, etc. 

  • The distance between two opposite wheels on a same axletree. 

  • Physical course; way. 

  • The entire lower surface of the foot; said of birds, etc. 

  • The pitch. 

  • A road or other similar beaten path. 

  • The direction and progress of someone or something; path. 

  • Awareness of something, especially when arising from close monitoring. 

  • A tract or area, such as of land. 

  • A song or other relatively short piece of music, on a record, separated from others by a short silence. 

  • The street, as a prostitute's place of work. 

  • A circular (never-ending) data storage unit on a side of magnetic or optical disk, divided into sectors. 

  • A themed set of talks within a conference. 

  • A mark or impression left by the foot, either of man or animal. 

  • The way or rails along which a train moves. 

  • Sound stored on a record. 

  • The physical track on a record. 

  • A mark left by something that has passed along. 

  • The racing events of track and field; track and field in general. 

How often have the words shuttle and track occurred in a corpus of books? (source: Google Ngram Viewer )