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English definition of “brick wall”

brick wall

noun [C, usually singular]
 
 
a point or level that it is very difficult to go past: The housing market declined as the boom in prices hit a brick wall.
a problem or situation that is very difficult to solve: Their hopes to expand the company ran into a brick wall when they couldn't get a loan.
bang/hit your head against a brick wall to try repeatedly to do something with no success: It felt like I was hitting my head against a brick wall because I had no support from my boss.
(Definition of brick wall from the Cambridge Business English Dictionary © Cambridge University Press)
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