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
Essie	['esi]
Rameses	RAM-ə-seez (English)	Ancient Egyptian (Hellenized)
Jeri	JER-ee	English
Chidiebube	-	Western African, Igbo
Raffaele	-	Italian
Thema	-	Western African, Akan