映す

1. Origins, structure, and basic meaning

• Structure: 映す (うつす) is a transitive verb for reflecting an image or projecting it on a surface.
• Basic usage: A mirror reflects blue sky; old footage is projected onto a venue wall.

2. Common pitfalls and similar expressions

• Mirror reflection and wall projection
  • Subject 鏡が is a reflective medium; location 壁に is a projection surface. Distinguish spelling from copying verb 写す.