/ gʌst; NAmE / noun , verb
■ noun
1.
a sudden strong increase in the amount and speed of wind that is blowing :
A gust of wind blew his hat off.
The wind was blowing in gusts.
2.
a sudden strong expression of emotion :
a gust of laughter
■ verb
[ v ] ( of the wind ) to suddenly blow very hard :
winds gusting up to 60 mph
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WORD ORIGIN
late 16th cent.: from Old Norse gustr , related to gjósa to gush.