What does 纪律 (jìlǜ) mean in English?

Card 718HSK Level 2718/2021
CARD718
PROGRESS36%
纪律
紀律
jìlǜ
rule; discipline(Noun)

Reveal: Click/Space/Enter/↑↓/w/s/j/kNavigate: ←→/h/l/a/d