/ ˈblɪzəd; NAmE -zərd/ noun
1.
a snowstorm with very strong winds :
blizzard conditions
a raging / howling blizzard
2.
a large quantity of things that may seem to be attacking you :
a blizzard of documents
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WORD ORIGIN
early 19th cent. (originally US, denoting a violent blow): of unknown origin.