The term London Jail can be summarized as a GAOL, which is a four-letter word for a prison or jail. GAOL is an old-fashioned term for a place of confinement, usually used in the context of a British prison. It is derived from the Latin word 'cavea' meaning 'CAGE'. London Jail is a term used to refer to the many prisons located in London, England. These prisons are used to house inmates who have been convicted of various crimes and are serving their sentences.