火燵布団[kotatsubuton] cover for kotatsu
圧力団体[atsuryokudantai] pressure group
一家団欒[ikkadanran] happy family get-together
一団[ichidan] body
右翼団体[uyokudantai] right-wing organization (clique) (organisation)

営団[eidan] corporation
応援団[ouendan] cheering party
応援団長[ouendanchou] cheerleader
花より団子[hanayoridango] dumplings rather than flowers
外郭団体[gaikakudantai] auxiliary organization

雨子[amago] land-locked variety of red-spotted masu trout (Oncorhynchus masou ishikawae)
御菓子[okashi] confections
お子さん[okosan] (someone else's) child
お子様[okosama] child (someone else's)
山梔子[kuchinashi] Cape jasmine (Gardenia jasminoides)

させ子[saseko] whore
梃子摺る[tekozuru] to have much trouble
螺子回し[nejimawashi] screwdriver
硝子[garasu] glass
獅子女[sufinkusu] sphinx

ランブル鞭毛虫[ranburubenmouchuu] giardia (flagellate protozoan)
ランブル鞭毛虫症[ranburubenmouchuushou] giardiasis
いも虫[imomushi] hornworm (caterpillar of a hawk moth)
益虫[ekichuu] useful insect
円虫類[enchuurui] round worms

夏虫[natsumushi] summer insect
蛔虫[kaichuu] roundworm (Ascaris lumbricoides)
害虫[gaichuu] harmful insect
鈎虫[kouchuu] hookworm
寄生虫[kiseichuu] parasite