To tie or catch in a noose; to entrap or ensnare.
An adjustable loop of rope, such as the one placed around the neck in hangings, or the one at the end of a lasso.
The removal of a block or blockage.
To remove or clear a block or obstruction from.
In whist, to throw away a high card so as not to interrupt one's partner's long suit.
To free or make available.
To enable communication again, via telephone, instant messaging, etc., with (somebody previously blocked).