Definition of "Bridle" :
noun: the act of restraining power or action or limiting excess
"His common sense is a bridle to his quick temper."
noun: headgear for a horse; includes a headstall and bit and reins to give the rider or driver control
verb: respond to the reins, as of horses
verb: put a bridle on
verb: anger or take offense
"She bridled at his suggestion to elope."