瓦

1. Origins, structure, and basic meaning

• Structure: The single kanji 瓦, read かわら, denotes a roof tile.
• Basic usage: 瓦 denotes a roof tile or roofing tiles as material.

2. Common pitfalls and similar expressions

• Roofing material and individual tile
  • 瓦に can mark a point of impact or attachment, while 瓦を can mark an individual tile being placed or removed.