干渉

1. Origins, structure, and basic meaning

• Structure: 干渉 (かんしょう) combines involvement 干 and crossing 渉 to denote meddling or physical interference.
• Basic usage: It applies to parents intruding on a child's choices and radio waves distorting one another.

2. Common pitfalls and similar expressions

• Social and physical interference
  • A person's decision yields the social sense, while waves or signals yield the technical sense of interaction and distortion.