Synonym Nuance VS
How to say "Act" in Japanese
Both words can translate to "act", but which should you choose?
Japanese Option A
行動する
こうどうする (koudou suru)
N3 / CEFR Syllabus
VS
Japanese Option B
行為
こうい (kōi)
N3 / CEFR Syllabus
Nuance Contrast & Translation Difference
When translating "act" into Japanese, you must choose carefully between 行動する and 行為.
In Japanese, 行動する (こうどうする (koudou suru)) is typically associated with "to act; to behave; to take action" (Syllabus Level: N3) and represents Implies taking concrete steps or moving from thought to action. Often used in contexts of problem-solving, social activities, or personal initiative. 計画や考えだけでなく、実際に何かを「する」という意味合いで使われます。.
On the other hand, 行為 (こうい (kōi)) maps to "act, deed, conduct" (Syllabus Level: N3) and represents Refers to a specific action or deed, often with a moral, legal, or formal implication. More formal than just 「すること」.. A literal translation of "act" can often sound unnatural to native Japanese speakers if mixed up!
Bilingual Context for "行動する"
計画だけでなく、実際に行動することが大切だ。
Not just planning, but actually taking action is important.
Bilingual Context for "行為"
その行為は社会的に許されない。
That act is not socially acceptable.
Nuance Mastery Quiz
Which Japanese word perfectly fits this blank space?
Fill in the blank: "計画だけでなく、実際に ＿＿＿ ことが大切だ。" (Meaning: "Not just planning, but actually taking action is important.")
🎉 Correct Answer!
Remember: "行動する" fits here because it means "to act; to behave; to take action" in the context of: "Not just planning, but actually taking action is important.". "行為" represents "act, deed, conduct".