Bargain could mean some of the following:

1. The process whereby buyer and seller agree the price of goods or services. See bargaining.
2. An agreement to exchange goods at a price.
3. Such an agreement where one of the parties thinks the price is very favourable.
4. On a stock exchange, an agreement to buy or sell shares.
5. A notorious spyware also known as BargainBuddy

Bargain is also the name of a song by The Who.

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