অর্থ : A street with only one way in or out.
সমার্থক : cul de sac, dead-end street, impasse
অর্থ : (figurative) a course of action that is unproductive and offers no hope of improvement.
উদাহরণ :
All the clues led the police into blind alleys.
So far every road that we've been down has turned out to be a blind alley.
Blind alley meaning in Bengali (Bangla).