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
PaŠKo	-	Croatian
Galen	GAY-lən	English
Sawyer	['sɔ:jə]
ÉTienne	e-TYEN (French), e-TSYEN (Quebec French)	French
Sunday	SUN-day	English
Hanan (1)	HAY-nən (English)	Biblical