Meaning and Usage
"侵入" (しんにゅう) primarily means "invasion" or "trespass," referring to unauthorized entry into a place or system. It is often used in contexts involving physical intrusion, such as entering private property without permission, or metaphorical intrusion, like a virus invading a computer.
Common Contexts
This word appears frequently in security, legal, and IT-related conversations. For example, it can describe someone breaking into a building, unauthorized access to digital systems, or violations of personal privacy.
Collocations and Patterns
- 侵入する: to invade or trespass (common verb form)
- 不法侵入: illegal trespassing
- 侵入者: intruder
- 侵入を防ぐ: to prevent intrusion
Register and Nuance
"侵入" is a formal noun often used in written and formal spoken Japanese, such as news reports, legal documents, and technical discussions. It is less common in casual conversation, where simpler words like "入る" (to enter) might be used.
Common Learner Mistake
Learners sometimes confuse "侵入" with "侵略" (しんりゃく), which means "invasion" in a military or large-scale sense. "侵入" is more about unauthorized entry on a smaller scale, such as trespassing or hacking, rather than warfare.