know chalk from cheese

To be able to tell two things apart (especially by recognizing their differences). Of course I know which twin is which, I know chalk from cheese, after all! Leah has a beauty mark under her left eye, and Deena doesn't.

Common Names:

Name	Pronounced	Usage
Meike	MIE-kə	German, Dutch
Caratacus	-	Ancient Celtic (Latinized)
Hyledd	-	Welsh
Alard	-	Ancient Germanic
Ebrahim	-	Persian, Arabic
Catrine	-	Swedish