発効(はっこう)

はっこう
noun, suru verb
coming into effect, taking effect
1. coming into effect, taking effect
A law, treaty, contract, or regulation officially becoming valid and enforceable.
条約(じょうやく)が発効(はっこう)した。
The treaty came into effect.
新(あたら)しい法律(ほうりつ)は来月(らいげつ)発効(はっこう)する予定(よてい)だ。
The new law is scheduled to take effect next month.
この契約(けいやく)は両者(りょうしゃ)の署名(しょめい)をもって発効(はっこう)するものとする。
This contract shall take effect upon the signatures of both parties.

USAGE:
A formal, legal/bureaucratic term used almost exclusively with laws, treaties, regulations, and contracts. The intransitive pattern 発効(はっこう)する (something takes effect) is standard. Often seen with {～をもって} (upon) to indicate the trigger.

COMMON COLLOCATIONS:

  • 条約(じょうやく)が発効(はっこう)する: a treaty takes effect
  • 法律(ほうりつ)が発効(はっこう)する: a law comes into force
  • 発効(はっこう)日(び): effective date
  • 即日(そくじつ)発効(はっこう): effective immediately

HOMOPHONES:

  • 発行(はっこう): publication, issuance (of books, tickets)
  • 発酵(はっこう): fermentation

Related Words

Homophone: 発行(はっこう)
Homophone: 発酵(はっこう)
general
Added 2026.2.26 21:22
13500/13640_hakkou