Pronunciation: (ub-strukt'), [key]
1. to block or close up with an obstacle; make difficult to pass: Debris obstructed the road.
2. to interrupt, hinder, or oppose the passage, progress, course, etc., of.
3. to block from sight; to be in the way of (a view, passage, etc.).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.