胸元

1. Origins, structure, and basic meaning

• Structure: 胸元(むなもと) is a noun for the upper chest area or the part of clothing around the chest and neckline.
• Basic usage: The place where air enters appears in 胸元に風が入る, while part of a costume appears in 衣装の胸元.

2. Common pitfalls and similar expressions

• Body and clothing area
  • Depending on context, it can refer to the upper chest or to the chest and neckline area of clothing.
• Particle and connection
  • Use 胸元に for air entering that area and 衣装の胸元 to identify the part of a particular garment.