word is law

somebody's word is law

what someone says must be obeyed There's no use questioning anything around here, because my boss's word is law.

if someone's word is law, everyone must obey them There's no use questioning any of his rules - his word is law around here.

Name	Pronounced	Usage
'Isam	-	Arabic
Vitalijus	-	Lithuanian
Sly	SLIE	English
Florencia	flo-REN-thyah (Spanish), flo-REN-syah (Latin American Spanish)	Spanish
Kalpana	-	Indian, Hindi, Marathi, Tamil, Kannada, Telugu, Nepali
Alenka	-	Slovene