- lock-ups1) N-COUNT A lock-up is the same as a jail. [AM, INFORMAL]
...the 450 inmates at the maximum-security lock-up in Lucasville.2) N-COUNT A lock-up is a garage that is used by someone, but is not next to their house. [BRIT]
25lb of Semtex explosive was found in the lock-up she had rented to Mr Henderson.ADJ: ADJ nLock-up is also an adjective.
A massive arms cache had been hidden in a lock-up garage near the couple's home.
English dictionary. 2008.