Definition of

Bar

  1. (noun, artifact) a room or establishment where alcoholic drinks are served over a counter
  2. (noun, artifact) a counter where you can obtain food or drink
  3. (noun, artifact) a rigid piece of metal or wood; usually used as a fastening or obstruction or weapon
  4. (noun, communication) musical notation for a repeating pattern of musical beats
  5. (noun, artifact) an obstruction (usually metal) placed at the top of a goal
  6. (noun, act) the act of preventing
    money was allocated to study the cause and prevention of influenza
  7. (noun, quantity) (meteorology) a unit of pressure equal to a million dynes per square centimeter
  8. (noun, object) a submerged (or partly submerged) ridge in a river or along a shore
  9. (noun, group) the body of individuals qualified to practice law in a particular jurisdiction
  10. (noun, attribute) a narrow marking of a different color or texture from the background
    may the Stars and Stripes forever wave
  11. (noun, artifact) a block of solid substance (such as soap or wax)
  12. (noun, artifact) a portable .30 caliber automatic rifle operated by gas pressure and fed by cartridges from a magazine; used by United States troops in World War I and in World War II and in the Korean War
  13. (noun, artifact) a horizontal rod that serves as a support for gymnasts as they perform exercises
  14. (noun, artifact) a heating element in an electric fire
  15. (noun, artifact) (law) a railing that encloses the part of the courtroom where the judges and lawyers sit and the case is tried
  16. (verb, communication) prevent from entering; keep out
  17. (verb, contact) render unsuitable for passage
    barricade the streets
    stop the busy road
  18. (verb, social) expel, as if by official decree
  19. (verb, contact) secure with, or as if with, bars

via WordNet, Princeton University

Antonyms of Bar

unbar

Origin of the word Bar

  1. late 12c., "stake or rod of iron used to fasten a door or gate," from O.Fr. barre (12c.) "beam, bar, gate, barrier," from V.L. *barra "bar, barrier," which some suggest is from Gaulish *barros "the bushy end" [Gamillscheg], but OED regards this as "discredited" because it "in no way suits the sense." Of soap, by 1833; of candy, by 1906 (the process itself d… more
  2. c.1300, "to fasten (a gate, etc.) with a bar," from bar (1); sense of "to obstruct, prevent" is recorded by 1570s. Expression bar none "without exception" is recorded from 1866. more
  3. "tavern," 1590s, so called in reference to the bars of the barrier or counter over which drinks or food were served to customers (see bar (1)). Barmaid is from 1772; barfly "habitual drunkard" is from 1910. more
  4. "whole body of lawyers, the legal profession," 1550s, a sense which derives ultimately from the railing that separated benchers from the hall in the Inns of Court. Students who had attained a certain standing were "called" to it to take part in the important exercises of the house. After c.1600, however, this was popularly assumed to mean the bar in a courtroom, which wa… more
  5. unit of pressure, coined 1903 from Gk. baros "weight," from barys "heavy" (see grave (adj.)). more

via Online Etymology Dictionary, ©2001 Douglas Harper

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