Definition as Noun

• the act of relieving ills and changing for the better
• a condition superior to an earlier condition
• the linguistic process in which over a period of time a word grows more positive in connotation or more elevated in meaning

• amelioration, betterment

• improvement

• "the new school represents a great improvement"

• Melioration vs amelioration
• Melioration vs betterment
• Melioration vs improvement