In poker and gaming, "buying in" is the process of entering a tournament that requires an up-front payment. The size of the payment, otherwise known as the "buy in", determines the total winning prize pool and also contains a fee, otherwise known as the rake, that is paid to the house.[1]

References

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  1. ^ Little, Jonathan. Secrets of Professional Tournament Poker, Volume 2: Stages of the Tournament. D&B Publishing. p. 177. ISBN 9781904468813.