Most common bidding and defensive card-play agreements are not encrypted, even though their interpretations may benefit from knowledge available to only some players, because the governing partnership agreement does not change. Suppose, for instance, that a defender makes a lead from equal cards that establishes a suit at notrump. Encrypted auction see Encrypted call. Opener's new-suit rebid is encrypted, because it can be deciphered only by a player who holds or later discovers the location of the ace or king of spades. Encrypted signal a defensive card-play signal that is encrypted by agreement.
Entry squeeze a squeeze in which one of the victim's busy cards forestalls an entry.
Establish make into winning cards by removing higher cards of the suit. Estimate guess at the score achieved on a deal or over a session. Etiquette courteous table behavior. Exit get off lead. Exit card a card used to effect an exit.