偉功[ikou] great deed
遺功[ikou] works following the deceased
気功[kikou] breathing exercise
九仞の功[kyuujinnokou] spectacular success
勲功[kunkou] merits

軍功[gunkou] meritorious war service
蛍雪の功[keisetsunokou] the fruit of diligent study
功業[kougyou] exploit
功罪[kouzai] both good and bad
功績[kouseki] achievements

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

もし可能ならば[moshikanounaraba] if possible
英語基礎能力試験[eigokisonouryokushiken] English Language Proficiency Test
応答能[outounou] competence
黄金万能[ougonbannou] the almighty dollar
価格性能[kakakuseinou] cost effectiveness

可能[kanou] potential
可能であれば[kanoudeareba] if possible
可能性[kanousei] potentiality
可能性が高い[kanouseigatakai] very likely
可能選択[kanousentaku] available choice