The word(s) "improve" appears 2 time(s) in 2 verse(s) in Quran in Muhammad Habib Shakir translation.

(1) And (as for) those who believe and do good, and believe in what has been revealed to Muhammad, and it is the very truth from their Lord, He will remove their evil from them and improve their condition.

(سورة محمد, Muhammad, Chapter #47, Verse #2)
(Arabic, Transliteration, Urdu (Ahmed Ali), Urdu (Jalandhry), Farsi, Yusuf Ali, Shakir, Picthal, Mohsin Khan, French, Spanish, Indonesian, Malay, German, Bosnian, Russian, Dutch, Italian, Portuguese, Tafsir - Jalal ad-Din, Tafsir - King Fahad Quran Complex)

(2) He will guide them and improve their condition.

(سورة محمد, Muhammad, Chapter #47, Verse #5)
(Arabic, Transliteration, Urdu (Ahmed Ali), Urdu (Jalandhry), Farsi, Yusuf Ali, Shakir, Picthal, Mohsin Khan, French, Spanish, Indonesian, Malay, German, Bosnian, Russian, Dutch, Italian, Portuguese, Tafsir - Jalal ad-Din, Tafsir - King Fahad Quran Complex)