原則【げんそく】
principle, general rule, as a rule, in principle, in general
規則【きそく】
rule, regulation
罰則【ばっそく】
punishment, penalty, penal regulations, penal provisions, penal code
校則【こうそく】
school rules, school regulations
反則【はんそく】
foul, breaking the rules, violation (of the law, regulations, etc.), infringement, breach, infraction
法則【ほうそく】
law, rule
不規則【ふきそく】
irregularity, unsteadiness, disorderly
変則【へんそく】
irregularity, anomaly
会則【かいそく】
society regulations, club regulations, constitution