金糸雀[kinshijaku] canary (esp. the island canary, Serinus canaria)
亜麻糸[amaito] flax yarn
綾糸[ayaito] colored thread
一糸[isshi] string
一糸まとわぬ[isshimatowanu] stark naked

一糸一毫[isshiichigou] tiny amount
下糸入れ[shitaitoire] shuttle
菌糸[kinshi] fungal filament
結紮糸[kessatsushi] ligature
原糸[genshi] thread for weaving

収繭[shuuken] cocoon crop
二つ繭[futatsumayu] double cocoon
繭を掛ける[mayuwokakeru] to spin a cocoon
繭価[mayuka] price of a cocoon
繭玉[mayudama] New Year's decoration with cocoon-shaped cakes

繭紬[kenchuu] pongee (unbleached silk)
繭糸[kinuito] silk thread
春繭[harumayu] spring cocoon crop
山繭蛾[yamamayuga] Japanese oak silkmoth (Antheraea yamamai)