改革（かいかく、kaiかku）
- reform

The Japanese word 改革, pronounced かいかく (kaikaku), means "reform," "change," or "innovation." It signifies a fundamental restructuring or improvement of a system, organization, or process. It suggests a significant alteration, often aiming to address problems, increase efficiency, or adapt to new circumstances. It implies a deliberate and often planned process of making something better. The scope of a 改革 can range from small adjustments to large-scale overhauls. The concept usually involves significant positive changes or improvements.

⚫︎政治改革 Translation: Political reform ⚫︎教育改革 Translation: Education reform ⚫︎経済改革 Translation: Economic reform

You can use 改革 when discussing any situation where significant changes are being made to improve something. It’s suitable for formal and informal contexts. It's often used in news reports, business discussions, and academic contexts. When talking about changes, make sure that they are major changes and not just minor adjustments.

改革 is primarily written with the kanji 改革. The reading in hiragana is かいかく. There are no variations in okurigana for this word.

⚫︎改善 (kaizen) - improvement ⚫︎刷新 (sashin) - renewal; renovation ⚫︎変革 (henkaku) - reform, revolution, change ⚫︎革新 (kakushin) - innovation

⚫︎保守 (hoshu) - conservatism; conservation ⚫︎現状維持 (genjō iji) - maintaining the status quo

政府は社会保障制度の改革に取り組んでいる。 ・Translation: The government is working on reforming the social security system. ・Explanation: This sentence illustrates the use of 改革 to describe the government's efforts to fundamentally change the social security system.

企業の生産性を高めるために、労働環境の改革が必要だ。 ・Translation: To increase the company's productivity, reform of the working environment is necessary. ・Explanation: This sentence shows that 改革 can also be used in business contexts to refer to significant changes or improvements to working environments.

The word 改革 is a compound word derived from two kanji. ⚫︎改 (kai), meaning "to change" or "to reform." ⚫︎革 (kaku), meaning "to reform," "to change," or "leather."（It can also imply “to peel”, "skin".) Together, they represent the concept of "reforming" or "changing".