太もも

1. Origins, structure, and basic meaning

• Structure: 太もも (reading ふともも) is a noun for the thigh, the upper part of the leg between the hip and the knee.
• Basic usage: It is used for sore thigh muscles after exercise or for a child sitting on someone’s thigh.

2. Common pitfalls and similar expressions

• Anatomical range
  • 太もも identifies the upper leg rather than the whole leg or the buttocks.
• Contextual focus
  • A pain context focuses on the muscles, while 太ももの上 treats the thigh as a supporting surface.