ameliorate russian

• улу́чшить

  to improve, make better, ameliorate, amend, grade up, better, improve on

• улучша́ть

  to improve, make better, ameliorate, amend, grade up, better, improve on

• улучша́ться

  improve, ameliorate, take a turn for the better

• улу́чшившийся

  improved, ameliorated, bettered