In lang=en terms the difference between circuit and track
is that
circuit is abbreviation of lang=en while
track is a song or other relatively short piece of music, on a record, separated from others by a short silence.
As nouns the difference between circuit and track
is that
circuit is the act of moving or revolving around, or as in a circle or orbit; a revolution; as, the periodical circuit of the earth around the sun while
track is a mark left by something that has passed along; as, the track, or wake, of a ship; the track of a meteor; the track of a sled or a wheel.
As verbs the difference between circuit and track
is that
circuit is to move in a circle; to go round; to circulate while
track is to observe the (measured) state of an object over time.