The Collaborative International Dictionary
Jail \Jail\ (j[=a]l), n. [OE. jaile, gail, gayhol, OF. gaole, gaiole, jaiole, F. ge[^o]le, LL. gabiola, dim. of gabia cage, for L. cavea cavity, cage. See Cage.] A kind of prison; a building for the confinement of persons held in lawful custody, especially for minor offenses or with reference to some future judicial proceeding. [Written also gaol.]
This jail I count the house of liberty.
--Milton.
Jail delivery, the release of prisoners from jail, either legally or by violence.
Jail delivery commission. See under Gaol.
Jail fever (Med.), typhus fever, or a disease resembling it, generated in jails and other places crowded with people; -- called also hospital fever, and ship fever.
Jail liberties, or Jail limits, a space or district
around a jail within which an imprisoned debtor was, on
certain conditions, allowed to go at large.
--Abbott.
Jail lock, a peculiar form of padlock; -- called also Scandinavian lock.
WordNet
n. the use of force to liberate prisoners
Usage examples of "jail delivery".
The man suspected of engineering the jail delivery answers the description of Caldwell.
There was small chance it could be stopped, but if something were to happen to Orrin and me, if there was to be a jail delivery .
A traffic arrest there, followed by a street shooting and then a wholesale jail delivery of black prisoners, upset the schedule: the revolt was quickly out of control.
The wholesale jail delivery did not occur until well along into 1915.