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

繭紬[kenchuu] pongee (unbleached silk)
大島紬[ooshimatsumugi] Oshima tsumugi weave

紬糸[tsumugiito] (spun) silk thread
結城紬[yuukitsumugi] silk products produced near Yuuki (using natural indigo dye)