trailer truck vs truck

trailer truck and truck both are nouns.

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

As nouns, truck is a hypernym of trailer truck; that is, truck is a word with a broader meaning than trailer truck:

Other hypernyms of trailer truck include motortruck.

trailer truck (noun)	truck (noun)
a truck consisting of a tractor and trailer together	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

trailer truck (verb)	truck (verb)
	convey (goods etc.) by truck