noun
spun thread; spun yarn
Refers to thread or yarn that has been spun, typically from silk, wool, or cotton. Used in textile and craft contexts.
祖母は絹の紡ぎ糸で布を織った。
My grandmother wove cloth with spun silk thread.
この紡ぎ糸は手触りがとても柔らかい。
This spun yarn is very soft to the touch.
糸 is the general word for thread or yarn, while 紡ぎ糸 specifically refers to thread that has been spun.
紡績 refers to the process of spinning or the spinning industry, whereas 紡ぎ糸 is the resulting spun thread.
Compound of 紡ぎ (tsumugi, 'spinning', the continuative form of 紡ぐ tsumugu 'to spin') and 糸 (ito, 'thread').