1. To block or fill (a passage) with obstacles or an obstacle. See Synonyms at block.
  2. To impede, retard, or interfere with; hinder: obstructed my progress.
  3. To get in the way of so as to hide from sight.

The above text is a snippet from Wiktionary: obstruct
and as such is available under the Creative Commons Attribution/Share-Alike License.

Need help with a clue?
Try your search in the crossword dictionary!