exciseman vs internal revenue agent

exciseman and internal revenue agent both are nouns.

Word	Noun	Adjective	Verb	Adverb
exciseman	Yes	No	No	No
internal revenue agent	Yes	No	No	No

As nouns, exciseman and internal revenue agent are synonyms defined as:

exciseman and internal revenue agent: someone who collects taxes for the government

Other synonyms of exciseman include collector of internal revenue, tax collector, taxman.

exciseman (noun)	internal revenue agent (noun)
someone who collects taxes for the government	someone who collects taxes for the government