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
Ede	-	Hungarian
Celino	che-LEE-no (Italian), the-LEE-no (Spanish), se-LEE-no (Latin American Spanish)	Italian (Rare), Spanish (Rare)
Zhannochka	-	Russian
Praskovya	prah-SKOV-yah	Russian
Drustan	-	Ancient Celtic
Ealhhere	-	Anglo-Saxon