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

亜細亜[ajia] Asia (esp. "the Far East")
委細[isai] details
委細面談[isaimendan] details when I see you
共産党細胞[kyousantousaibou] communist cell
些細[sasai] trivial

細細[komagoma] minutely
細細[hosoboso] poor (living)
細い[hosoi] thin
細か[komaka] small
細かい[komakai] small