bar

noun
  1. A long rigid piece of metal, wood, or other material used as an obstruction, barrier, or for support. noun
    The police put up a bar across the road to prevent entry.
    He leaned against the bar and ordered a drink.
  2. A counter where drinks, especially alcoholic beverages, are served in a pub, tavern, or similar establishment. noun
    They met at the bar for a quick drink after work.
    The bartender was serving cocktails at the bar.
  3. A unit of measurement used in cooking, equal to a standard pressure unit (approximately 14.5 pounds per square inch). noun
    The recipe requires the oven to be set at 2 bars of pressure.
    The tire pressure should be maintained at around 2 bars.
  4. To prohibit or prevent something, especially by legal or official means. verb
    The law bars smoking in public places.
    The school bars students from using cell phones during class.
  5. To prevent someone from doing something or entering a place; to exclude. verb
    He was barred from entering the club due to his behavior.
    The security guard barred the protesters from the building.