articulated lorry vs trailer truck

articulated lorry and trailer truck both are nouns.

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

As nouns, articulated lorry and trailer truck are synonyms defined as:

articulated lorry and trailer truck: a truck consisting of a tractor and trailer together

Other synonyms of articulated lorry include rig, semi, tractor trailer, trucking rig.

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