tollman vs toller

tollman and toller both are nouns.

Word	Noun	Adjective	Verb	Adverb
tollman	Yes	No	No	No
toller	Yes	No	No	No

As nouns, tollman and toller are synonyms defined as:

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

tollman (noun)	toller (noun)
someone employed to collect tolls	someone employed to collect tolls
	a person who rings church bells (as for summoning the congregation)