English to English

verb (v)

• be a hindrance or obstacle to(verb.social)

  Synonym:
  hinder
  

  source: wordnet30
• block passage through(verb.contact)

  Synonym:
  block, close up, jam, obstruct, obturate, occlude
  Antonym:
  disengage, free
  

  source: wordnet30
• To hinder; to stop in progress; to obstruct; as, to impede the advance of troops.(verb)

  source: webster1913