Bidding is the process of offering a specific amount of money for an item or service, often in an auction setting. Participants compete by placing higher bids until the auction ends, and the highest bidder wins the item. This method is commonly used for selling art, antiques, and real estate. In addition to auctions, bidding can occur in various contexts, such as government contracts or online marketplaces. In these cases, individuals or companies submit proposals or offers, and the best bid is selected based on criteria like price, quality, and delivery time.