collector of internal revenue vs taxman

collector of internal revenue and taxman both are nouns.

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

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

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

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

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