1NT: Both minor 2H: 4+ Heart + a longer minor suit
2S: 4+ Spade + a longer minor suit
1NT: Both minor 2H: 4+ Heart + a longer minor suit
2S: 4+ Spade + a longer minor 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.