to blockade; to seal off; to lock down

to lock (a door); to close with a latch; to lock into place; a lock; a latch; to lock a computer file (to prevent it being overwritten); to lock (denying access to a computer system or device or files, e.g. by password-protection); to focus attention on; to target

door lock

to lock the door

to interlock; to be linked; chain (store etc.)

chains; shackles

collarbone; clavicle

stocks and chain; in fetters