規制|きせいkisei[0]heiban (flat)

1. noun, suru verb, transitive verbregulation; (traffic) policing; control; restriction
   交通こうつう規制きせいには従したがわないといけない。↗

   We should obey the traffic rules.

• Synonym取り締まりとりしまりNeutralPolice-style crackdowns on illegal acts; the emphasis is on enforcement. 「規制」 is about setting rules to restrict behavior.
• Synonym統制とうせいWrittenUnified control by the state under a set policy, as in 「言論統制」— stronger control than 「規制」, which just sets limits. Written/formal.
• Synonym管制かんせいWrittenConcentrated control, often state-led, or air traffic control: 「報道管制」「航空管制」. 「規制」 is the broader term for rule-based limits. Written/formal.
• Related管理かんりNeutralA very broad word for running, handling and maintaining things, as in 「品質管理」. 「規制」 specifically means imposing restrictions.
• RelatedコントロールNeutralLoanword for controlling or adjusting a wide range of things, including a pitcher's control. 「規制」 means restricting by rule.
• Related制御せいぎょNeutralControlling machines and devices, as in 「自動制御」, or holding emotions in check. 「規制」 restricts behavior, not machinery.
• Related規定きていWrittenThe stipulated provisions themselves — the content of the rule. 「規制」 can also mean a restrictive rule, but stresses the limiting. Written/formal.
• Related条例じょうれいWrittenLaws enacted by local governments. 「規制」 is often implemented under such ordinances, and refers to the restrictive measures or rules. Written/formal.
• Related監督かんとくNeutralSupervising and directing people; also a director or coach. 「規制」 restricts through rules — it does not mean watching over someone.
• Related抑制よくせいWrittenHolding something down or curbing it, as in 「食欲を抑制する」. 「規制」 restricts by rules rather than suppressing. Written/formal.
• Related規則きそくNeutralThe rules themselves that must be followed — a general-purpose word. 「規制」 stresses restricting behavior through such rules.
• Related法令ほうれいFormalLaws and the orders enacted under them. 「規制」 is the restriction carried out on the basis of such laws. Formal.
• RelatedルールNeutralLoanword for rules, common in everyday speech. 「規制」 stresses restricting behavior, as in 「自主規制」, though it can also name the restrictive rule itself.
• Related法ほうFormalLaw, but also method or principle — a very broad word. 「規制」 refers to concrete restrictive measures or rules. Formal.
• Related拘束こうそくWrittenBinding a person physically, or rules and contracts constraining action, as in 「契約上の拘束」. 「規制」 is about setting limits. Written/formal.
• Related抑止よくしWrittenDeterring or preventing an act from happening, as in 「核抑止力」. 「規制」 restricts by rule rather than deterring. Written/formal.
• Related定めさだめWrittenStipulated rules, and also fate — a literary word. 「規制」 focuses on restricting behavior. Written/formal.
• Antonym自由じゆうNeutralFreedom to act as one wishes without constraint — the opposite of 「規制」, which restricts behavior.
• Antonym緩和かんわNeutralEasing or relaxing restrictions — the opposite of tightening them, as in 「規制緩和」.

Use 「規制」 for restricting behavior through rules, as in 「交通規制」 or 「自主規制」. For enforcement against violations use 「取り締まり」; for unified state control 「統制」 or 「管制」; for running and maintaining things 「管理」; for machine control 「制御」. For the rules themselves choose 「規則」, 「ルール」 (colloquial), 「規定」 or 「法」/「法令」. To curb or deter, use 「抑制」 or 「抑止」; to constrain, 「拘束」. The antonyms are 「自由」 and 「緩和」, as in 「規制緩和」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 規則きそくにより制限せいげんすること。また、その規則きそく。