沈める

1. Origins, structure, and basic meaning

• Structure: 沈める, read しずめる, is a transitive verb meaning to sink an object or dampen a mood.
• Basic usage: 錨を海へ沈めた lowers an anchor into the sea; 空気を沈めた figuratively lowers the room's mood.

2. Common pitfalls and similar expressions

• Physical sinking and emotional dampening
  • 海へ supplies a literal downward destination, while 部屋の空気 denotes an atmosphere affected figuratively; both take を.