What is the meaning of obstruct?

verb

• Hinder or prevent the progress or accomplishment of.
  • usage: "His brother blocked him at every turn"
  • synonyms: blockade, block, hinder, stymie, stymy, embarrass
• Block passage through.
  • usage: "obstruct the path"
  • synonyms: obturate, impede, occlude, jam, block, close up
• Shut out from view or get in the way so as to hide from sight.
  • usage: "The thick curtain blocked the action on the stage"; "The trees obstruct my view of the mountains"
  • synonyms: block