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3. come to a dead end

come to a dead end

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come to a dead end

 and reach a dead end 

1. Lit. to reach a point where one can go no farther and can turn in no new direction. The road comes to a dead end about a mile farther.

2. Fig. to have run out of possible ideas, solutions, energy, etc. I've come to a dead end. I'm fresh out of ideas. The committee reached a dead end on the matter and tabled the whole business.

See also: come, dead, end