Mettle | Mean of mettle in English Dictionary
/ˈmɛtl̟/
- Noun
- strength of spirit
- He proved/showed his mettle [=he proved/showed how tough he is] as a fighter tonight.
- The competition will test her mettle.
- making an effort to do as well as possible
- She'll have to be on her mettle [=at her best] to win this competition.