Learn how to say Downfall correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word downfall:
1a loss of power, prosperity, or status:
the crisis led to the downfall of the government
the cause of a loss of power, prosperity, or status:
his intractability will prove to be his downfall
2a heavy fall of rain or snow:
the wind was whipping up the downfall into deep drifts on the moor