行動
彼は行動が遅い。
He is slow to act.
The act of doing something; movement or behavior as a result of thought or decision.
行動を起こす
to take action
行動力がある人
a person of action
Often used in contexts emphasizing proactive behavior or decision-making.
In psychology, behavior as observed and measured.
行動パターンを分析する
to analyze behavioral patterns
Common in academic or professional discussions about human behavior.
Related Phrases
Pro Tip
Distinguish from 振る舞い (furumai)
行動 emphasizes the act itself, while 振る舞い often implies the manner or style of behavior, especially in social contexts. For example, 行動する refers to taking action, while 振る舞う can mean 'to behave' in a social setting.
Gold Rule
Use 行動 for outcomes, not intentions
行動 is used for actions that have been carried out or are about to be carried out, not for intentions or thoughts. For example, 計画を立てる (to make a plan) is thinking, but 計画を行動に移す (to put the plan into action) is 行動.
Word Origin
From Middle Chinese 行動 (hængH dəwngH, “to move, to act”). The character 行 means 'to go' or 'to do', and 動 means 'to move' or 'to stir'. Combined, it conveys the idea of movement resulting in action.
Usage Notes
行動 is a broad term that can refer to both physical movement and decision-based actions. It is often used in contrast to 思考 (thinking) or 言葉 (words). In everyday speech, it emphasizes the execution of an idea rather than the idea itself.