know what are doing

know what you are doing

to have the necessary knowledge or experience to do something Mountain climbing is a dangerous sport, so I hope he knows what he's doing.

Name	Pronounced	Usage
Branca	BRAN-ka (Galician)	Portuguese, Galician
Eloisa
Adalhard	-	Ancient Germanic
Yorath	-	Welsh
ĐUrĐIca	JOOR-jee-tsah	Croatian
Reinout	-	Dutch