<p><strong>Verb</strong></p><ul><li>to hinder, block, or thwart.</li></ul><p><strong>Noun</strong></p><ul><li>a situation or problem presenting such difficulties as to discourage or defeat any attempt to deal with or resolve it.</li><li>Golf: (on a putting green) an instance of a ball's lying on a direct line between the cup and the ball of an opponent about to putt.</li></ul>