paving machine vs paviour

paving machine and paviour both are nouns.

Word	Noun	Adjective	Verb	Adverb
paving machine	Yes	No	No	No
paviour	Yes	No	No	No

As nouns, paving machine and paviour are synonyms defined as:

Other synonyms of paving machine include pavior.

paving machine (noun)	paviour (noun)
a machine for laying pavement	a machine for laying pavement