n.
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) jail v.
1.lock up or confine, in or as in a jail
Idiom of the Day
pound out (something) or pound (something) out
to type something on a typewriter, to play a song on a piano
I spent several hours trying to pound out an essay on my computer.