A situation where an opponent's ball is directly in the way of one's own ball and the hole, on the putting green (abolished 1952).
An obstacle or obstruction.
To thwart or stump; to cause to fail or to leave hopelessly puzzled, confused, or stuck.
To bring into the position of, or impede by, a stymie.
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).
The removal of a block or blockage.