Definition of Jail 1. A correctional institution used to detain persons who are in the lawful custody of the government (either accused persons awaiting trial or convicted persons serving a sentence) Noun 2. Lock up or confine, in or as in a jail Verb Synonyms for word "jail" Semanticaly linked words with "jail" Hyponims for word "jail" Lexical Analysis for "jail" jailer someone who guards prisoners jailor someone who guards prisoners etymology enjail etymology jailable etymology jailbird etymology jailbreaker etymology jailee etymology jailkeeper etymology jailless etymology jaillike etymology jailward etymology jailyard etymology nonjail etymology rejail etymology जेल [Hindi] etymology ಜೈಲ್ etymology جیل [Urdu] etymological origin of gaiole is derived from jail sentence is derived from jailbait is derived from jailbird is derived from jailbreak is derived from jailed is derived from jailer is derived from jailing is derived from jails