lagger vs trailer

lagger and trailer both are nouns.

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

As nouns, lagger and trailer are synonyms defined as:

lagger and trailer: someone who takes more time than necessary; someone who lags behind

Other synonyms of lagger include dawdler, drone, laggard, poke.

lagger (noun)	trailer (noun)
someone who takes more time than necessary; someone who lags behind	a wheeled vehicle that can be pulled by a car or truck and is equipped for occupancy
	a large transport conveyance designed to be pulled by a truck or tractor
	an advertisement consisting of short scenes from a motion picture that will appear in the near future
	someone who takes more time than necessary; someone who lags behind