胸部

1. Origins, structure, and basic meaning

• Structure: 胸部 (きょうぶ) is a noun for the chest or thoracic area of a body, and it can also identify the chest area of clothing.
• Basic usage: It is used for observing a thoracic skeleton or sewing an ornament onto the chest of a costume.
  • 人体模型で胸部の骨格を観察した。 — We observed the thoracic skeleton using an anatomical model.
  • 衣装の胸部に小さな飾りを縫い付けた。 — I sewed a small ornament onto the chest of the costume.

2. Common pitfalls and similar expressions

• Body and clothing area
  • 胸部 can name the anatomical chest and also the corresponding area of clothing, as in 衣装の胸部.