auctioneer auctioneer /ˌɑːkʃəˈnɪr/

noun

1. An agent who conducts an auction  ( auctioneer )
   an agent who conducts an auction
    The auctioneer's rapid voice filled the room as he sought the highest bid.
   The auctioneer's rapid voice filled the room as he sought the highest bid.
   
   

verb

1. Sell at an auction  ( auction , auction off , auctioneer )
   sell at an auction