揺れ

1. Origins, structure, and basic meaning

• Structure: The spelling is 揺れ, read ゆれ, and it is a noun derived from 揺れる for shaking or vibrating movement.
• Basic usage: 揺れ means visible sway caused by wind or another force, or a slight vibration detected by an instrument.

2. Common pitfalls and similar expressions

• Large visible movement and small measurable vibration
  • Both examples use the form 揺れ. Strong wind increases a window's movement, while a device records vibrations that are slight.
• A window moving more in wind and an instrument recording small motion
  • 強い風で窓の揺れが大きくなった。 — The window shook more as the wind grew stronger.
  • 装置が小さな揺れも記録していた。 — The device recorded even slight vibrations.