noun.
One who plays at a game of chance, who gambles.
noun.
One who takes risks.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
someone who risks loss or injury in the hope of gain or excitement
noun.
a person who wagers money on the outcome of games or sporting events
Word Usage
"Bush the gambler is betting that he will come out looking like President Reagan, whose deficits bought economic reforms and a stronger national defense."