Definition of gridlock noun from the Oxford Advanced Learner's Dictionary

     

    gridlock

     noun
    noun
    BrE BrE//ˈɡrɪdlɒk//
     
    ; NAmE NAmE//ˈɡrɪdlɑːk//
     
    [uncountable] Motoring problems and accidents
     
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  1. 1a situation in which there are so many cars in the streets of a town that the traffic cannot move at all It’s gridlock between 6.30 and 9.00. The protest march created gridlock. See related entries: Motoring problems and accidents
  2. 2(usually in politics) a situation in which people with different opinions are not able to agree with each other and so no action can be taken Congress is in gridlock.
  3. Word Origin 1980s (originally US): from grid (in sense (1)) + lock ‘become rigidly fixed’.
See the Oxford Advanced American Dictionary entry: gridlock