天蓋

1. Origins, structure, and basic meaning

• Structure: 天蓋 is read as てんがい and is a noun for a decorative or protective canopy suspended over a bed, seat, altar, or similar object.
• Basic usage: A bed covering appears in 寝台の天蓋, while a ceremonial object appears in 儀式に使われた天蓋.

2. Common pitfalls and similar expressions

• Overhead covering
  • It is a fabric or decorative structure placed over a particular object to define, adorn, or protect its space.
• Difference from 屋根
  • 屋根 is the fixed roof covering the outside of a building, while 天蓋 is a canopy installed over a specific object such as a bed or ceremonial space.