Synonym Nuance VS
How to say "Revision" in Japanese
Both words can translate to "revision", but which should you choose?
Japanese Option A
改正
かいせい (kaisei)
N3 / CEFR Syllabus
VS
Japanese Option B
改定
かいてい (kaitei)
N2 / CEFR Syllabus
Nuance Contrast & Translation Difference
When translating "revision" into Japanese, you must choose carefully between 改正 and 改定.
In Japanese, 改正 (かいせい (kaisei)) is typically associated with "revision, amendment, alteration (of laws, rules, etc.)" (Syllabus Level: N3) and represents 法律、規則、制度などをより良くするために改めること。特に公的な文書や規範に対して使われます。To amend or revise laws, rules, systems, etc., to make them better or more appropriate. Specifically used for official documents or norms..
On the other hand, 改定 (かいてい (kaitei)) maps to "revision, amendment (of rules, prices, regulations)" (Syllabus Level: N2) and represents Specifically refers to changing or revising existing rules, laws, prices, or systems. Implies a minor or moderate change, often to improve or update.. A literal translation of "revision" can often sound unnatural to native Japanese speakers if mixed up!
Bilingual Context for "改正"
法律が改正され、新しい制度が始まった。
The law was revised, and a new system began.
Bilingual Context for "改定"
来月から運賃が改定されます。
The fare will be revised from next month.
Nuance Mastery Quiz
Which Japanese word perfectly fits this blank space?
Fill in the blank: "法律が ＿＿＿ され、新しい制度が始まった。" (Meaning: "The law was revised, and a new system began.")
🎉 Correct Answer!
Remember: "改正" fits here because it means "revision, amendment, alteration (of laws, rules, etc.)" in the context of: "The law was revised, and a new system began.". "改定" represents "revision, amendment (of rules, prices, regulations)".