A formal, often computerized record or log of the financial transactions of an organization or system.

plural of audit trail

plural of star trail

(astronomy, photography) The line of light recorded on a photographic medium when a time exposure is made of a star in the nighttime sky using a camera on a fixed mount, caused by the rotation of the earth during the period of time when the camera's shutter is held open.

Alternative spelling of trailhand

plural of paper trail

plural of trail mix

The journeys taken by hippies and others in the 1960s and 1970s, typically involving cheap travel.

plural of hippie trail

plural of treasure trail