bolt·er 1 
(bōltər)
(bōltər)n.
1. A horse given to bolting.
2. One who gives up membership in or withdraws support from a political party.
- water ski
- waterski
- water-ski
- water-skier
- waterskin
- water snake
- waters of hydration
- water softener
- water-soluble
- water spaniel
- watersports
- waterspout
- water sprite
- water strider
- water supply
- water system
- water table
- water taxi
- waterthrush
- watertight
- water tower
- water turkey
- water under the bridge
- water vapor
- water-vascular system