know one's own mind

Be certain about what one wants; be decisive. For example, Don't ask him; he's so tired that he doesn't know his own mind, or She certainly knows her own mind when it comes to giving stage directions. This term was first recorded in 1824.

Common Names:

Name	Pronounced	Usage
Amira (2)	ah-MEER-ah	Hebrew
Esau	EE-saw (English)	Biblical, Biblical Latin, Biblical Greek
Ulla	OOL-lah (Finnish)	Swedish, Danish, Norwegian, Finnish, German
Ieva	-	Lithuanian, Latvian
Basant	-	Indian, Hindi
Eran	-	Biblical