襟

1. Origins, structure, and basic meaning

• Structure: 襟 is read as えり and is a noun for the collar or lapel around the neck of a shirt, coat, or other garment.
• Basic usage: Straightening a collar appears in 襟を整える, while turning it up appears in 襟を立てる.

2. Common pitfalls and similar expressions

• The neck portion of a garment
  • It denotes the fabric surrounding or folded around the neck of a garment, not the neck itself.
• Difference from 袖
  • Unlike a sleeve covering the arm, this is the part of a garment around the neck.