To sign on the opposite side of (a document).
To add a second signature to a document, affirming the validity of the signature of another person.
A second signature added to a document to affirm the validity of the signature of the first person.
The response to a sign or signal.
To release (a prisoner) on the understanding that s/he checks in regularly and obeys the law.
A word of honor, especially given by a prisoner of war, to not engage in combat if released.
Originally, one's oath or word of honour, given as a condition of release from custody; now specifically, describing the release of a former prisoner under certain conditions, especially the promise of good behaviour.
Language in use, as opposed to language as a system.
The permission for a foreigner who does not meet the technical requirements for a visa to be allowed to enter the U.S. on humanitarian grounds.
Conditional release of a prisoner (now especially before the end of a custodial sentence), or the term or state of such release; the system governing such releases.