悪循環[akujunkan] vicious circle
一環[ikkan] link (e.g. a part of a larger plan)
印環[inkan] signet ring (in medical contexts, e.g. signet ring cell)
円環[enkan] circle
花環[hanawa] wreath

環境[kankyou] environment
環境グループ[kankyouguruupu] environmental group
環境事業[kankyoujigyou] environmental business
環境庁[kankyouchou] Environment Agency
環境庁長官[kankyouchouchoukan] Director General of Environment Agency

糫餅[magarimochii] pastry made of dough pulled into various shapes and fried

お餅[omochi] rice cakes
安倍川餅[abekawamochi] rice cakes (mochi) with Kinako
ぼた餅[botamochi] adzuki bean mochi
画餅[gabei] failure
絵にかいた餅[enikaitamochi] pie in the sky

血餅[keppei] (blood) clot
焼き餅やき[yakimochiyaki] jealous person
伸餅[noshimochi] flattened rice cakes
煎餅[senbei] rice cookie
煎餅蒲団[senbeibuton] thin bedding