細ほそ糸いと

noun

fine thread; fine yarn; filament

Refers to a single thin strand used in sewing, weaving, or textile contexts. Can also be used metaphorically for something thin and threadlike.

• この細ほそ糸いとは絹きぬでできている。

  This fine thread is made of silk.

• 細ほそ糸いとを使つかってボタンを縫ぬい付つけた。

  I sewed the button on using fine thread.