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wind speednoun [mass noun]The rate at which air is moving in a particular area: wind speeds were estimated at between 200 and 210 mph...- Across much of the Great Plains, the annual average wind speed is about 13.4 miles per hour.
- It's the top-of-the-line in amateur weather gear, measuring everything from wind speed to rainfall and giving me personal forecasts.
- Low wind speeds affecting more than 90 per cent of the country are only likely to occur for about an hour, once every five years during the winter.
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