tailgate vs truck

tailgate and truck both are nouns.

Word	Noun	Adjective	Verb	Adverb
tailgate	Yes	No	Yes	No
truck	Yes	No	Yes	No

tailgate (noun)	truck (noun)
a gate at the rear of a vehicle; can be lowered for loading	an automotive vehicle suitable for hauling
	a handcart that has a frame with two low wheels and a ledge at the bottom and handles at the top; used to move crates or other heavy objects

tailgate (verb)	truck (verb)
follow at a dangerously close distance	convey (goods etc.) by truck