糸 means 'thread' or 'string.'
Counter: 本
Common compounds:
- 毛糸: yarn, wool
- 絹糸: silk thread
- 縫い糸: sewing thread
Cultural note: 赤い糸 (red thread) refers to the Japanese/Chinese legend that an invisible red thread connects those destined to meet, especially romantic partners.
Related words:
- 紐: string, cord (thicker)
- 縄: rope (much thicker)