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wind ![click to hear : wind click to hear : wind](../../../images/speaker-vert.gif)
Displacement of air caused by variations in pressure between two regions of the atmosphere.
pennant ![click to hear : pennant click to hear : pennant](../../../images/speaker-vert.gif)
Symbol of a wind blowing between 88 and 96 km/h.
barb ![click to hear : barb click to hear : barb](../../../images/speaker-vert.gif)
Symbol of a wind blowing between 14 and 22 km/h.
half barb ![click to hear : half barb click to hear : half barb](../../../images/speaker-vert.gif)
Symbol of a wind blowing between 5 and 13 km/h.
shaft ![click to hear : shaft click to hear : shaft](../../../images/speaker-vert.gif)
Symbol of a wind blowing at a speed lower than 5 km/h.
wind arrow ![click to hear : wind arrow click to hear : wind arrow](../../../images/speaker-vert.gif)
Symbol that uses the position of the shaft to indicate wind direction and the number of barbs and pennants to indicate wind speed.
calm ![click to hear : calm click to hear : calm](../../../images/speaker-vert.gif)
Symbol indicating the absence of wind.