truck driver vs teamster

truck driver and teamster both are nouns.

Word	Noun	Adjective	Verb	Adverb
truck driver	Yes	No	No	No
teamster	Yes	No	No	No

As nouns, truck driver and teamster are synonyms defined as:

Other synonyms of truck driver include trucker.

truck driver (noun)	teamster (noun)
someone who drives a truck as an occupation	someone who drives a truck as an occupation
	the driver of a team of horses doing hauling