"Bail must refer to all forms of what is formally known under the Criminal Code as judicial interim release. In common parlance, 'bail' sometimes refers to the money or other valuable security which the accused is required to deposit with the court as a condition of release...."
—The law

Bail' is commitment made (and possibly secured by cash or property) to secure the release of a person being held in custody and suspected of a crime, to provide some kind of guarantee that the suspect will appear to answer the charges at some later date.