一円[ichien] one yen
一円玉[ichiendama] one-yen coin
一円札[ichiensatsu] one-yen bill
円か[madoka] round
円やか[maroyaka] round

円グラフ[engurafu] pie graph
円安[enyasu] cheap yen
円為替[engawase] yen exchange
円域[eniki] yen bloc

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

お大事に[odaijini] take care of yourself
暗黒大陸[ankokutairiku] Dark Continent (i.e. Africa)
伊勢大神宮[isedaijinguu] the Grand Shrines of Ise
伊勢大廟[isetaibyou] the Grand Shrines of Ise
偉大[idai] greatness

医科大学[ikadaigaku] medical school
医大[idai] medical university
井の中の蛙大海を知らず[inonakanokawazutaikaiwoshirazu] parochial
一大[ichidai] one large ...
一大事[ichidaiji] serious affair