auction
US /ˈɑːk.ʃən/
UK /ˈɑːk.ʃən/

1.
a public sale in which goods or property are sold to the highest bidder
:
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The painting was sold at auction for a record price.
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They attended a charity auction to raise funds.
1.
to sell (goods or property) at an auction
:
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They decided to auction off their antique furniture.
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The rare book will be auctioned next month.