duck 2 
(dŭk)
(dŭk)v. ducked, duck·ing, ducks
v.tr.
1. To lower quickly, especially so as to avoid something: ducked his head as the ball came toward him.
2. To evade; dodge: duck responsibility; ducked the reporter's question.
3. To push (a person, for example) suddenly under water.
4. In bridge, to deliberately play a card that is lower than (an opponent's card).
v.intr.
1. To lower the head or body.
2. To move swiftly, especially so as to escape being seen: ducked behind a bush.
3. To submerge the head or body briefly in water.
4. To evade a responsibility or obligation. Often used with out: duck out on one's family.
5. In bridge, to lose a trick by deliberately playing lower than one's opponent.
n.
1. A quick lowering of the head or body.
2. A plunge under water.
[Middle English douken, to dive, possibly from Old English *dūcan; akin to Middle Low German and Middle Dutch dūken.]
ducker n.
- uncoil
- uncollected
- uncomfortable
- uncomfortableness
- uncomfortably
- uncommercial
- uncommitted
- uncommon
- uncommonly
- uncommonness
- uncommunicative
- uncommunicatively
- uncommunicativeness
- Uncompahgre Plateau
- uncompensated
- uncompetitive
- uncompetitively
- uncompetitiveness
- uncomplaining
- uncomplainingly
- uncompleted
- uncomplicated
- uncomplimentary
- uncomprehending
- uncomprehendingly