A "bidder" is a person or company that offers or proposes a specific price or offer to buy something in an auction or competitive process. Full definition
Tata steel emerged as highest bidder for Bhushan Steel with offer of Rs 352 bn in cash along with 12.27 % of equity (business-standard.com)
Answer: You might pursue an action for breach of contract to buy a nugget, but why not just save the headache and sell to the next highest bidder for $ 8,000? (legalblogwatch.typepad.com)
This allows winning bidders of multiple items to choose a single shipping option for their entire invoice. (32auctions.com)