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general::
Phrase(s): 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.
McGrawhill's American Idioms And Phrasal Verbs