obliteration

US /əˌblɪt̬.əˈreɪ.ʃən/
UK /əˌblɪt̬.əˈreɪ.ʃən/
1.

말살

the action of removing all signs of something, either by destroying it or by covering it so that it cannot be seen:

:
•
The war resulted in the obliteration of hundreds of towns.