compulsory
US /kəmˈpʌl.sɚ.i/
UK /kəmˈpʌl.sɚ.i/

1.
wajib, kompulsif, keharusan
required by law or a rule; obligatory
:
•
School attendance is compulsory for children up to the age of 16.
Kehadiran sekolah wajib bagi anak-anak hingga usia 16 tahun.
•
Wearing a helmet is compulsory when riding a motorcycle.
Mengenakan helm wajib saat mengendarai sepeda motor.