trail

/treɪl/ n [C] (PATH)

Definition

› a path through the countryside, often made or used for a particular purpose: a bike/mountain/nature trail fig. Presidential candidates were on the campaign trail in Mississippi yesterday. › A trail is also a series of marks left by a person, animal, or thing as it moves along: The kids left a trail of muddy footprints across the kitchen floor.

(Definition of trail n (PATH) from the Cambridge Academic Content Dictionary © Cambridge University Press)