To fasten or secure with a deadbolt.
A kind of lock in which the bolt (moving portion) is held in position by the cylinder rather than by a spring and so cannot be retracted except by turning the cylinder.
The part of the lock which is moved when the key is engaged.
To secure with rope, string, etc.
To occupy, detain, keep busy, or delay.
To immobilize a capital: make a capital investment that makes that capital unavailable.
To complete, finish, or resolve.
Don't forget to tie up your hair before you bake.