, each player
bids or pass
es until everybody else passes after one player's bid.
Once somebody has made a bid, each following bid must be higher than the previous one, or a double or redouble
bid. Clubs is the lowest suit
, then diamonds, hearts, spades, and finally no trump
. After one of each of these suits comes two of a suit and so on up to 7.
Bridge bidding follows certain conventions which allows players partial knowledge of their partners' hands.