prove one's mettle

Definition of prove one's mettle

  1. :  to prove how tough one is He proved his mettle as a fighter tonight.

Word by Word Definitions

proveplay
  1. :  to learn or find out by experience

    :  to test the truth, validity, or genuineness of

    :  to test the worth or quality of

mettleplay
  1. :  vigor and strength of spirit or temperament (see temperament 1a)

    :  staying quality :  stamina

    :  quality of temperament or disposition


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