tollkeeper vs toller

tollkeeper and toller both are nouns.

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

As nouns, tollkeeper and toller are synonyms defined as:

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

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