Balanced hand
A hand is said to be balanced if it has a distribution of 4-3-3-3, 4-4-3-2, or 5-3-3-2 (Also defined as "no voids, no singletons, and at most one doubleton"). Balanced hands are particularly suitable for notrump contracts.
Bid
A declaration of both level and denomination (suit or no trump) that generally indicates the number of tricks the bidder believes their partnership can win; certain bids can also be used as conventions.
Bid out of turn
A bid erroneously made when it was other player's turn to bid. Subject to penalty.
Bidding
The first phase of the game, where players try to establish the final contract by making subsequent bids.
Bidding system
