/ˈɔ:kʃn ||; ˈɔkʃən/noun [C,U] a public sale at which items are sold to the person who offers to pay the most money 拍卖: The house was sold at / by auction.那幢房子以拍卖方式售出。
auction²
/ˈɔ:kʃn ||; ˈɔkʃən/verb [T] auction sth (off) to sell sth at an auction 拍卖