trailer vs trail

trailer and trail both are nouns.

Word	Noun	Adjective	Verb	Adverb
trailer	Yes	No	No	No
trail	Yes	No	Yes	No

trailer (noun)	trail (noun)
a wheeled vehicle that can be pulled by a car or truck and is equipped for occupancy	a path or track roughly blazed through wild or hilly country
a large transport conveyance designed to be pulled by a truck or tractor	evidence pointing to a possible solution
an advertisement consisting of short scenes from a motion picture that will appear in the near future	a track or mark left by something that has passed
someone who takes more time than necessary; someone who lags behind

trailer (verb)	trail (verb)
	drag loosely along a surface; allow to sweep the ground
	hang down so as to drag along the ground
	go after with the intent to catch
	move, proceed, or walk draggingly or slowly
	to lag or linger behind