|1.||to block (a road, passageway, etc) with an obstacle|
|2.||to make (progress or activity) difficult|
|3.||to impede or block a clear view of|
|[C17: Latin obstructus built against, past participle of obstruere, from ob- against + struere to build]|
|an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.|
|a chattering or flighty, light-headed person.|
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