be on mettle

be on your mettle

(slightly formal)

to be determined to prove that you are good at something, especially in a difficult situation It's a tough interview - you'll have to be on your mettle.

Common Names:

Name	Pronounced	Usage
Dragos	-	Romanian
Beach	[bi:tʃ]
Baptiste	ba-TEEST	French
Edward	ED-wərd (English), ED-vahrt (Polish)	English, Polish
Rozabela	ro-zah-BE-lah	Esperanto
Viking	VEE-king (Swedish), VEE-keeng (Finnish)	Swedish, Finnish