Related words 規則 is the everyday word for 'rule' or 'regulation', while 則 is a rare, formal counterpart used mainly as a suffix or in compounds.
ルール is the common, casual loanword for 'rule' used in everyday conversation, whereas 則 is a stiff, formal term rarely used alone.
Word family· 60 rule; regulation
principle; general rule · as a rule; in principle; generally
law; rule; principle
foul; rule violation in sports · rule-breaking; violation; breach; infraction
punishment; penalty · penal regulations; penal provisions; penal code
Show 25 more Show fewer school rules; school regulations
irregularity; anomaly; irregular
ironclad rule; inviolable rule; iron law
supplementary provisions; additional rules; by-laws
correct; proper; regular; systematic · invertible (matrix); holomorphic
teaching rules; instructional guidelines
bylaws; detailed regulations
prohibition; ban; forbidden rule
four basic arithmetic operations
society rules; club regulations; constitution
general rule; common rule; common provisions
school regulations
general provisions; general rules
regulations; standard; rule
rules; original rules; basic rules
party rules; party regulations
regulations; rules; code
natural law; rule of heaven
9th note of the ancient Chinese chromatic scale (approx. A♯) · seventh lunar month
code; rule; regulation
established rule; law
dormitory rules
store rules (for employees)
general rules; general principles
port regulations
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Etymology The kanji 則 originally means 'rule' or 'law' and is used in many compound words. The reading そく is the on'yomi. The standalone noun use is rare; the suffix/counter use is a grammatical extension.
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