verb lock up or confine, in or as in a jail.
— synonyms: imprison, incarcerate, lag, immure, put_behind_bars, jail, jug, put_away
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: jail, jailhouse, clink, slammer, poky, pokey