collector of internal revenue vs internal revenue agent

collector of internal revenue and internal revenue agent both are nouns.

Word	Noun	Adjective	Verb	Adverb
collector of internal revenue	Yes	No	No	No
internal revenue agent	Yes	No	No	No

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

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

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

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