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

カバー曲[kabaakyoku] remake of another artist's song (a "cover")
サイン曲線[sainkyokusen] sinusoid
愛唱曲[aishoukyoku] favourite song
委曲[ikyoku] details
一曲[ikkyoku] tune (melody, piece of music)

迂曲[ukyoku] meander
円曲[enkyoku] roundabout way (of speaking or working)
円錐曲線[ensuikyokusen] conic curve
円舞曲[enbukyoku] waltz (composition)
演曲[enkyoku] musical program

御見舞[omimai] calling on someone who is ill
御仕舞[oshimai] the end
仕舞った[shimatta] damn it!
独り舞台[hitoributai] performing solo (by oneself)
円舞[enbu] waltz

円舞曲[enbukyoku] waltz (composition)
演舞場[enbujou] theatre
仮装舞踏会[kasoubutoukai] masquerade ball
仮面舞踏会[kamenbutoukai] masquerade ball
歌舞妓[kabuki] kabuki