tollman vs toll agent

tollman and toll agent both are nouns.

Word	Noun	Adjective	Verb	Adverb
tollman	Yes	No	No	No
toll agent	Yes	No	No	No

As nouns, tollman and toll agent are synonyms defined as:

Other synonyms of tollman include toll collector, toll taker, toller, tollgatherer, tollkeeper.

tollman (noun)	toll agent (noun)
someone employed to collect tolls	someone employed to collect tolls