雨傘

1. Origins, structure, and basic meaning

• Structure: 雨傘 is read as あまがさ and is a noun for an umbrella used against rain, as distinct from a parasol.
• Basic usage: Putting an umbrella in an entryway appears in 玄関に雨傘を置く, while leaving an umbrella behind on a train appears in 雨傘を電車に忘れる.

2. Common pitfalls and similar expressions

• Difference from 日傘
  • 雨傘 is for rain rather than sunlight.