n.
1.
Improving, amending, meliorating, melioration, ameliorating, amelioration, bettering.
2.
Amendment, melioration, amelioration, betterment, progress, proficiency, advancement.
3.
Good use, beneficial employment.
n.
1.
Improving, amending, meliorating, melioration, ameliorating, amelioration, bettering.
2.
Amendment, melioration, amelioration, betterment, progress, proficiency, advancement.
3.
Good use, beneficial employment.
Soule. Dictionary of English synonyms. Словарь английских синонимов. 2012