#1 obstruct v. [blockade, block, hinder, stymie, stymy, embarrass] hinder or prevent the progress or accomplishment of; "His brother blocked him at every turn". wn
#2 obstruct v. [obturate, impede, occlude, jam, block, close up] block passage through; "obstruct the path". wn
#3 obstruct v. [block] shut out from view or get in the way so as to hide from sight; "The thick curtain blocked the action on the stage"; "The trees obstruct my view of the mountains". wn
vizzz