| n. 1.  A relatively long, straight, rigid piece of solid material used as a fastener, support, barrier, or structural or mechanical member. 2.  a.  A solid oblong block of a substance or combination of ingredients, such as soap or candy. b.  A usually rectangular slice of any of various flat baked confections that are typically dense in texture. c.  A rectangular block of a precious metal. 3.  Sports   a.  See  horizontal bar. b.  A horizontal rod that marks the height to be cleared in high jumping or pole vaulting. 4.  A standard, expectation, or degree of requirement: a leader whose example set a high bar for others. 5.  Something that impedes or prevents action or progress: A poor education was a bar to his ambitions. 6.  A ridge, as of sand or gravel, on a shore or streambed, that is formed by the action of tides or currents. 7.  A narrow marking, as a stripe or band. 8.  a.  A narrow metal or embroidered strip worn on a military uniform indicating rank or service. b.  Chiefly British   A small insignia worn on a military decoration indicating that it has been awarded an additional time. 9.  Heraldry   A pair of horizontal parallel lines drawn across a shield. 10.  Law   a.  The nullification, defeat, or prevention of a claim or action. b.  The process by which nullification, defeat, or prevention is achieved. 11.  The railing in a courtroom separating the participants in a legal proceeding from the spectators. 12.  A court or courtroom. 13.  Law   a.  Attorneys considered as a group. Used with the. b.  The profession of law. Used with the. 14.  Music   a.  A vertical line drawn through a staff to mark off a measure. b.  A measure. 16.  a.  A counter at which drinks, especially alcoholic drinks, and sometimes food, are served. b.  An establishment or room having such a counter. tr.v.  barred, bar·ring, bars  1.  To fasten securely with a long, straight, rigid piece of material: barred the gate. 2.  To shut in or confine: barred themselves in the basement. 3.  To obstruct or impede; block: barred the access route. 4.  To keep out; exclude: Tourists are barred from this room. 5.  a.  To prohibit or prevent (someone) from doing something: Failing the eye exam barred him from driving. b.  To prohibit (an action): The state bars the dumping of waste in the river. c.  Law   To nullify, defeat, or prevent (a claim or action). 6.  To rule out; except: Can we bar the possibility of foul play? 7.  To mark with stripes or bands. prep.Idiom:  Chiefly British   Except for; excluding: This was your best performance, bar none.  behind bars  In prison. | 
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
| n.  A unit of pressure equal to one million (106) dynes per square centimeter. | 
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
| bar- 
       Share: 
            
 
              Tweet pref. | 
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
| Bar. 
       Share: 
            
 
              Tweet abbr.  Bible  Baruch | 
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
| bar. 
       Share: 
            
 
              Tweet abbr. 1.  a.  barometer b.  barometric 2.  barrel | 
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
| BAR 
       Share: 
            
 
              Tweet abbr.  Browning automatic rifle | 
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.











