de rigeur

(formal)

if something is de rigeur, it is necessary if you want to be thought fashionable or if you want to follow a custom Leather jackets and jeans are still de rigeur for hard rock fans.

Common Names:

Name	Pronounced	Usage
Aston	['æstən]
Amado	ah-MAH-dho	Spanish
FerİDun	-	Turkish
KerİM	-	Turkish
Jordana	hor-DAH-nah (Spanish), jawr-DAN-ə (English)	Spanish, Portuguese, Macedonian, English (Rare)
Stanford	STAN-fərd	English