toll agent vs toll collector

toll agent and toll collector both are nouns.

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

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

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

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