prove (one's) mettle

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prove (one's) mettle

To prove that one has endurance and strength of character, or the necessary skills, abilities, or traits to succeed in something. You may be the youngest lawyer in the firm, but you certainly proved your mettle in that high-profile murder case. The new CEO proved her mettle by completely restructuring the dying mobile phone division into the powerhouse it is today.
See also: mettle, prove
References in periodicals archive ?
Government has provided you a platform to harness your capabilities and you can prove your mettle by taking full advantage of this platform.
Well, dear Camilla, prove your mettle and come and be a guest, I for one would LOVE to meet you.
Firing Back lays out a five-step recovery process: "Fight, not flight" (face the difficult situation), "Recruit others into battle" (enlist the right assistance), "Rebuild heroic stature" (spread the true nature of the adversity), "Prove your mettle" (regain trust and credibility), and "Rediscover the heroic mission" (clear the past and chart the future).