| term | pronunciation | English |
|---|
| 糸 | いと | thread |
| 毛糸 | けいと | woollen yarn |
| 糸巻き | いとまき | thread-reel |
| 製糸 | せいし | silk making |
| 撚糸 | ねんし | twisted thread or yarn, twining of thread or yarn |
| 生糸 | きいと | raw silk thread |
| 糸口 | いとぐち | thread end, beginning, clue |
| 紡糸 | ぼうし | spinning, spun cotton (wool) |
| 絹糸 | けんし, きぬいと | silk thread |
| 綾糸 | あやいと | colored thread, coloured thread, thread of cat's cradle, heddle thread |
| 綿糸 | めんし | cotton yarn (thread) |
| 緯糸 | よこいと, ぬきいと | weft, woof (crosswise threads on a loom) |
| 縦糸 | たていと | (weaving) warp |
| 繭糸 | けんし, きぬいと | silk thread |
| 蚕糸 | さんし | silk thread, silk yarn |
| 蚕糸業 | さんしぎょう | sericulture industry |
| 蚕糸試験所 | さんししけんじょ | silk experiment station |
| 釣り糸 | つりいと | fishing line |