直向[hitamuki] earnest
安直[anchoku] inexpensive
一直[icchoku] lining out to first base
一直線[icchokusen] straight line
鉛直[enchoku] perpendicular

下駄直し[getanaoshi] repairing clogs
開き直る[hirakinaoru] to become defiant
気を取り直す[kiwotorinaosu] to completely rethink
急転直下[kyuutenchokka] suddenly and precipitately
居直る[inaoru] to sit up properly straight

前翅[zenshi] fore-wing (of insect)
鳳翅鐘[houshitou] wing-rings (weapon)
双翅類[soushirui] dipterans
翅斑蚊[hamadaraka] anopheles mosquito (any mosquito of genus Anopheles, capable of carrying malaria)
半翅目[hanshimoku] Hemiptera

隠翅虫[hanekakushi] rove beetle
翅脈[shimyaku] wing veins (of an insect)
後翅[koushi] hindwing
鞘翅類[shoushirui] coleopterans

異類[irui] varieties
一類[ichirui] same kind
円虫類[enchuurui] round worms
塩類[enrui] salts
塩類溶液[enruiyoueki] saline

貝類[kairui] shellfish
柑橘類[kankitsurui] citrus fruits
希土類[kidorui] rare earth
魚貝類[gyokairui] marine products
魚類[gyorui] fish