Glossary is usually defined as an alphabetical list of technical terms in some specialized field of knowledge. This knowledge base glossary provides a collection of knowledge base documents that define many technical terms. These terms are arranged alphabetically, but you can quickly jump to a specific term by selecting its first letter from the index of the knowledge base glossary below.

The basic, most common way to sell an item on eBay. This format lets sellers list an item for sale, collect bids for a fixed length of time, and sell the item to the highest bidder.

When you run an eBay search, you can select the Best Match option in the "Sort by" menu. Selecting Best Match will display items that are the most relevant to your search, based on factors such as the shopping activity of other eBay buyers.

Bid Assistant is a eBay bidding feature that allows a buyer to create a group of items and have Bid Assistant bid until the buyer wins one item from that group. After a buyer creates a group of items and enters maximum bids, Bid Assistant will move through the group (starting with the item that ends first), and bid on the buyer’s behalf until one item is won.

The cancellation of a bid by an eBay seller during an auction-style listing. Once a bid is cancelled, it cannot be reinstated by the seller. However, the bidder may bid again. The seller can use the Block Bidders/Buyers feature to prevent a particular user from bidding again on a listing. In general, sellers should not cancel bids in listings. However, they might experience a situation in which they decide it is necessary. For example, sellers might cancel bids if they are unable to verify the identity of the bidder, even after they try all reasonable means of contact. Make sure you're aware of other rules and restrictions surrounding the cancellation of bids.

The amount by which a bid must be raised in order for it to be accepted in an auction-style listing. The bid increment is automatically determined based on the current high bid. For example, if the current bid for an item is $5.00 and the bid increment is $0.50, the next bid must be at least $5.50

The cancellation of a bid by a buyer during an auction-style listing. In general, a buyer cannot retract a bid once it is placed during an auction-style listing, so please bid carefully. A retraction may be allowed under special circumstances. For example, if buyers accidentally enter the wrong bid amount (entering $99.50 rather than $9.95), they may retract it and enter the right bid amount as long as they do so immediately. Make sure you're aware of other rules and restrictions surrounding the retraction of bids.

Bidder is eBay member who bids on an item on eBay. Remember each bid placed enters a buyer into a binding contract.

An eBay search for all the items that a member of eBay has placed bids on. This feature lets you see what items you've bid on during the last 30 days. Although you can use search by bidder to view your own current auctions or history, eBay recommends you use My eBay instead. My eBay has many more functions to manage your bidding and buying activities.You can also use this feature to see what another member has bid on during the last 30 days. All you need is the member's User ID. To protect bidder privacy, not all items that this member has bid on may be displayed. To keep eBay a safe place for buyers and sellers, eBay limits how bid history information is displayed. When the highest bid, reserve or Buy It Now price on an item reaches or exceeds a certain level, members cannot view or search for member-specific information—such as User IDs—on the Bid History page. The Bidding Details page contains detailed information on bidders; however, all bidders are assigned anonymous names—such as Bidder 1. Only the seller of the item can see a bidder’s User ID. See Managing Buyers and Bidders for more information on managing bidders. Regardless of the current high bid, when the reserve or Buy It Now price is initially set at a certain level, User IDs will appear as anonymous names throughout the duration of the auction, even if the seller lowers the price. Anonymous names may also appear more than once in the bid history and may represent different bidders from different auctions.

A list of specific eBay members that you create, who are not allowed to bid on or buy items you list for sale. Users on the list will be blocked until you take them off the list. You may want to do this if you've had a negative experience with a buyer in the past.

An eBay listing feature that lets a buyer purchase an item immediately for a price the seller has set. Items with this feature will display the "Buy It Now" icon and the Buy It Now price in their listings. Sellers can use the Buy It Now feature in Online Auction, Fixed Price, and Store Inventory formats.