knee

1. Origins, structure, and basic meaning

• Structure: 膝 is read ひざ, has 15 strokes, and relates to the knee.
• Basic usage: 膝 is read ひざ, and 膝枕 is read ひざまくら.

2. Common pitfalls and similar expressions

• 膝 and 膝枕
  • 膝 means knee.
  • 子どもは転んで膝を少し擦りむいた。 means “The child fell and slightly scraped their knee.”
  • 膝枕 means lap pillow.
  • 眠そうな子どもに母が膝枕をしてやった。 means “The mother let the sleepy child rest with their head in her lap.”