In the card game of contract bridge, to duck (or ducking) means to play low to a trick to which one has led, losing it intentionally in order to set up a suit or to preserve a control or entry. While mechanically identical,[1] a duck is a manoeuver in one's own suit, while a hold up is in a suit played by the opponents.[2] Nevertheless, the terms are used interchangeably[3] with duck or ducking more common.