What is the meaning of barring?

noun

• The act of excluding someone by a negative vote or veto.
  • synonyms: blackball

verb

• Prevent from entering; keep out.
  • usage: "He was barred from membership in the club"
  • synonyms: bar, debar, exclude
• Render unsuitable for passage.
  • usage: "block the way"; "barricade the streets"; "stop the busy road"
  • synonyms: barricade, block, blockade, stop, block off, block up, bar
• Expel, as if by official decree.
  • usage: "he was banished from his own country"
  • synonyms: banish, relegate, bar
• Secure with, or as if with, bars.
  • usage: "He barred the door"
  • synonyms: bar