1) Bar tender 2) Can collector 3) Cell watcher 4) Certain custodian 5) Con tender 6) Cooler head 7) Gaoler 8) Hardly a pen pal 9) Jailor 10) Keeper 11) Keeper of the keys 12) Key employee 13) Key guy at the graybar hotel 14) Law officer 15) Lawman 16) Lockup head 17) Lockup overseer 18) Old West sheriff, at times 1) Captor 2) Gaoler 3) Jailor 4) Keeper 5) Screw 6) Turnkey 7) Warden 8) Warder 
• (n.) The keeper of a jail or prison.
Jail'er noun [ Middle English jailer , gailer , Old French geolier , French geôlier . See Jail .] The keeper of a jail or prison. [ Written also jailor , gaoler .]
jailer A supervisor or employee who is in charge of prisoners in a jail.