潮流

1. Origins, structure, and basic meaning

• Structure: 潮流 (ちょうりゅう) can mean an ocean current or a broad social trend.
• Basic usage: 潮流に押される is a physical current pushing a ship; 社会の潮流を変える is a figurative trend changed by technology.

2. Common pitfalls and similar expressions

• Current altering a ship's course and trend shaping society
  • The first sense is physical, with に marking the force; the second is figurative, with を marking the thing changed.