1D: long heart suit 1H: long spade suit
2C: long diamond suit
2D: long heart and spade suit
2NT: long club and diamond suit
1D: long heart suit 1H: long spade suit
2C: long diamond suit
2D: long heart and spade suit
2NT: long club and diamond suit
A bidding convention is an agreement between two players on a different meaning of a bid in the card game bridge. These agreements are made so that partners can more quickly determine which contract, with both their cards, they can win together. Often, conventions are forged together into one, which is then called a bidding system.