auctioneer vs auction

auctioneer and auction both are nouns.

Word	Noun	Adjective	Verb	Adverb
auctioneer	Yes	No	Yes	No
auction	Yes	No	Yes	No

As verbs, auctioneer and auction are synonyms defined as:

Other synonyms of auctioneer include auction off.

auctioneer (noun)	auction (noun)
an agent who conducts an auction	the public sale of something to the highest bidder
	a variety of bridge in which tricks made in excess of the contract are scored toward game; now generally superseded by contract bridge

auctioneer (verb)	auction (verb)
sell at an auction	sell at an auction