► 動詞
伸ばす [(2)のばす] meaning: improve rank: 1
☆ 彼女は子供の学力を伸ばすことに懸命だ ⇨ She is focusing on improving her child’s school performance
伸びる [(2)のびる] meaning: improve rank: 1
☆ 彼の学校の成績が伸びた ⇨ His grades at school have improved
☆ 彼は100mを10.00で走ったが、それ以上記録が伸びないでいる ⇨ He ran 100m in 10.00 but since the record hasn’t improved further
磨く [みがく] meaning: improve rank: 1
☆ 彼女は長年技を磨き続けてきた ⇨ She has been polishing her skills over many years
改善 [かいぜん] [改善する] meaning: improve rank: 2
☆ 彼の容体はかなり改善した ⇨ His (health) condition has improved a lot
☆ 生産性は大幅に改善された ⇨ The productivity has been improved significantly (☛ Improve intangible things like system, productivity, performance, etc.)
改良 [かいりょう] [改良する] meaning: improve rank: 2
☆ 彼等はエンジンを大幅に改良した ⇨ They have significantly improved the engine (☛ Improve tangible things like machinery)
向上 [こうじょう] [向上する] meaning: improve rank: 2
☆ 新型エンジンの性能は大幅に向上した ⇨ The performance of the new engine has become higher, improved, significantly
上達 [じょうたつ] [上達する] meaning: improve rank: 2
☆ ピアノを弾き始めて六ヶ月で相当上達した ⇨ I started playing the piano and in 6 months I’ve gotten fairly good (☛ Improve, typically artistic, creative, sporting skills)
良くする [(1)よくする] [coll] meaning: improve rank: 2
☆ これ以上良くしようがない ⇨ There is not much left to improve
磨き上げる [(5)みがきあげる] meaning: improve rank: 3
☆ 磨き上げられた技 ⇨ Perfected skills
持ち直す [(4)もちなおす] meaning: improve rank: 3
☆ 彼の容態は持ち直した ⇨ His condition has improved (☛ Something that was deteriorating to turn around a little)
好転 [こうてん] [好転する] meaning: improve rank: 4
☆ 状況は好転した ⇨ The situation has turned for good (☛ Turn from bad to good)
切磋琢磨 [(1)せっさたくま] [切磋琢磨する] meaning: improve rank: 4
☆ 彼等は長年同じ道場で切磋琢磨してきた ⇨ They have been competing and improving each other at the same training center for years
► 成句
磨き [みがき] [磨きが掛かる] meaning: improve rank: 2
☆ 彼女の美しさに磨きが掛かった ⇨ Her beauty got polished. She has become even more beautiful
磨き [みがき] [磨きを掛ける] meaning: improve rank: 2
☆ 彼は技に一層の磨きをかけた ⇨ He’s polished his skills even further
► 名詞
改善 [かいぜん] meaning: improve rank: 2
☆ 彼等は生産性改善運動を推進している ⇨ They are pushing the productivity improvement project (☛ Improve intangible things like system, productivity, performance, etc.)
改良 [かいりょう] meaning: improve rank: 2
☆ 私達は製品に改良を重ねてきた ⇨ We have kept improving our products (☛ Improve tangible things like machinery)
向上 [こうじょう] meaning: improve rank: 2
☆ 私達は生産性の向上を目指している ⇨ We are targeting an improvement of the productivity
上達 [じょうたつ] meaning: improve rank: 2
☆ 語学の上達方法 ⇨ How to improve your foreign language skills (☛ Improve, typically artistic, creative, sporting skills)
好転 [こうてん] meaning: improve rank: 4
☆ (☛ Turn from bad to good)