Meaning and Usage
"動作" (どうさ) primarily refers to physical movements or actions, often describing how a person, animal, or machine moves or operates. It can be used in everyday conversation to talk about someone's gestures or the functioning of devices.
Common Contexts
- Describing human or animal movements: "自然な動作" (natural movements)
- Talking about machine or computer operation: "動作が遅い" (slow operation)
- Observing behavior or mannerisms: "動作が落ち着いている" (calm movements)
Collocations and Patterns
- 動作が速い／遅い: speed of movement or operation
- 動作を確認する: to check the operation or movement
- 動作が自然だ: movements are natural
Register and Nuance
"動作" is a neutral term used in both formal and informal contexts. When referring to machines or computers, it often relates to their functioning or performance. When used about people, it emphasizes the manner or style of movement.
Common Mistake
Learners sometimes confuse "動作" with "行動" (こうどう), which means "behavior" or "conduct". "動作" focuses on physical movement, while "行動" refers to actions or behavior in a broader sense including decisions and intentions.