コスト効率[kosutokouritsu] cost effectiveness
圧電効果[atsudenkouka] piezoelectric effect
偉効[ikou] great effect
逆効果[gyakukouka] backfire
経済効果[keizaikouka] (positive) economic effect

効果[kouka] effect
効果音[koukaon] sound effect
効果的[koukateki] effective
効果覿面[koukatekimen] bring an immediate result on

月遅れ[tsukiokure] a month or older
遅れをとる[okurewotoru] to fall behind
今や遅しと[imayaososhito] impatiently
手遅れ[teokure] being (too) late
出し遅れ[dashiokure] belated

出遅れる[deokureru] to get a late start
乗り遅れる[noriokureru] to miss (train, bus, etc.)
申し遅れる[moushiokureru] to be slow in saying
足が遅い[ashigaosoi] to be slow-footed
遅い[osoi] slow