Definition of "Bail" :

noun: the legal system that allows an accused person to be temporarily released from custody (usually on condition that a sum of money guarantees their appearance at trial)

"He is out on bail."

noun: (criminal law) money that must be forfeited by the bondsman if an accused person fails to appear in court for trial

"The judge set bail at $10,000."

verb: remove (water) from a vessel with a container

verb: empty (a vessel) by bailing

verb: secure the release of (someone) by providing security

verb: deliver something in trust to somebody for a special purpose and for a limited period

verb: release after a security has been paid