American English

Definition of slow lane noun from the Oxford Advanced American Dictionary

 

slow lane

 noun
noun
 
[singular]
 
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  • the part of a major road such as a highway or interstate where vehicles drive slowest
  • Idioms
    in the slow lane
     
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    not making progress as fast as other people, countries, companies, etc.
    See the Oxford Advanced Learner's Dictionary entry: slow lane