an official visit for inspection or supervision; "the commissioner made visitations to all the precinct stations"; "the recent visitation of the bishop to his diocese"
any disaster or catastrophe; "a visitation of the plague"
an obstruction that stands in the way (and must be removed or surmounted or circumvented)
something immaterial that stands in the way and must be circumvented or surmounted; "lack of imagination is an obstacle to one's advancement"; "the poverty of a district is an obstacle to good education"; "the filibuster was a major obstruction to the success of their plan"