articulated lorry vs trucking rig

articulated lorry and trucking rig both are nouns.

Word	Noun	Adjective	Verb	Adverb
articulated lorry	Yes	No	No	No
trucking rig	Yes	No	No	No

As nouns, articulated lorry and trucking rig are synonyms defined as:

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

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

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