bet ‧ ter ‧ ment /ˈbetəmənt $ -tər-/ BrE AmE noun [singular]
formal improvement, especially in someone’s social and economic position
for the betterment of somebody/something
social change for the betterment of society as a whole
bet ‧ ter ‧ ment /ˈbetəmənt $ -tər-/ BrE AmE noun [singular]
formal improvement, especially in someone’s social and economic position
for the betterment of somebody/something
social change for the betterment of society as a whole
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012