approaching a particular destination; a coming closer; a narrowing of a gap; "the ship's rapid rate of closing gave them little time to avoid a collision"
final or ending; "the closing stages of the election"; "the closing weeks of the year"; "the closing scene of the film"; "closing remarks"
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"