jail

(noun) 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). Synonyms: jailhouse, gaol, clink, slammer, poky, pokey.

(verb) lock up or confine, in or as in a jail. Synonyms: imprison, incarcerate, lag, immure, put behind bars, jug, gaol, put away, remand. Examples: "The suspects were imprisoned without trial." "The murderer was incarcerated for the rest of his life."