Русско-англо-русский юридический словарь

Tender guarantee is a guarantee of performance by the bidder of its tender obligations. (website of Trans Capital Corporation, Ltd.)

A bidder at an auction is making legally binding bids and will have had to submit a deposit before the auction in order to be eligible to partake in the bidding. (Auctioneera)

‘According to the auction house, seven bidders were chasing the painting.’ (Oxford English and Spanish Dictionary)

A bid bond is issued as part of a supply bidding process by the contractor to the project owner, to provide a guarantee that the winning bidder will undertake the contract under the terms on which they bid. (Wikipedia)