絹糸

1. Origins, structure, and basic meaning

• Structure: 絹糸 is read as きぬいと and is a material noun combining 絹, silk, with 糸, thread.
• Basic usage: It refers to fine silk thread used for embroidery or thread that shines faintly in the light.

2. Common pitfalls and similar expressions

• Material with で
  • In 細い絹糸で縫う, で marks the thread as the material or means used for stitching.
• Thread as the subject
  • In 絹糸が輝く, the silk thread itself catches the light; English number can follow whether one thread or the material collectively is meant.