Definitions:
a mark or a series of signs or objects left behind by the passage of someone or something

a long thin part or line stretching behind or hanging down from something

a beaten path through the countryside

a trailer for a film or broadcast

the rear end of a gun carriage, resting or sliding on the ground when the gun is unlimbered.

draw or be drawn along behind someone or something

walk or move slowly or wearily

follow (a person or animal) by using marks or scent left behind

be losing to an opponent in a game or contest

give advance publicity to (a film, broadcast, or proposal)

apply (slip) through a nozzle or spout to decorate ceramic ware.