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

吾亦紅[waremokou] burnet
口紅[kuchibeni] lipstick
紅焔[kouen] red flame
紅花[benibana] safflower
紅海[koukai] Red Sea

紅冠鳥[koukanchou] cardinal (bird) (Cardinalis cardinalis)
紅顔[kougan] rosy cheeks
紅唇[koushin] red lips
紅藻[kousou] red algae
紅茶[koucha] black tea

竹蜻蛉[taketonbo] small wooden Japanese toy that flies when spun between the palms of one's hands
蜻蛉返り[tonbogaeri] somersault
蜻蛉[fuyuu] mayfly
蜻蛉[tonbo] dragonfly
尻切れ蜻蛉[shirikiretonbo] leaving unfinished

塩辛蜻蛉[shiokaratonbo] Orthetrum albistylum speciosum (subspecies of white-tailed skimmer)
糸蜻蛉[itotonbo] damselfly
赤蜻蛉[akatonbo] (small) red dragonfly
麦藁蜻蛉[mugiwaratonbo] dragonfly
極楽蜻蛉[gokurakutonbo] happy-go-lucky fellow

竹蜻蛉[taketonbo] small wooden Japanese toy that flies when spun between the palms of one's hands
蜻蛉返り[tonbogaeri] somersault
蜻蛉[fuyuu] mayfly
蜻蜓[tonbou] dragonfly
尻切れ蜻蛉[shirikiretonbo] leaving unfinished

塩辛蜻蛉[shiokaratonbo] Orthetrum albistylum speciosum (subspecies of white-tailed skimmer)
糸蜻蛉[itotonbo] damselfly
赤蜻蛉[akatonbo] (small) red dragonfly
麦藁蜻蛉[mugiwaratonbo] dragonfly
極楽蜻蛉[gokurakutonbo] happy-go-lucky fellow