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dash someone's hopes

Idioms  
  1. Destroy someone's plans, disappoint or disillusion. For example, That fall dashed her hopes of a gold medal. This term uses dash in the sense of “destroy,” a usage surviving only in this idiom. [Second half of 1500s]


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

A positive test might still dash someone's hopes.

From BBC