Plain English Meaning
The expected wind at different heights along your route, shown as the direction the wind is coming from and how fast it is blowing.
Full Definition
On a flight planning chart or weather product, WINDS refers to the forecast or reported wind conditions — direction and speed — at specified altitudes along a route. Direction is given as the compass heading the wind is blowing FROM (in degrees true on written products, magnetic when spoken by ATC), and speed is given in knots.
Context Anchor
Seen in weather briefings, airport weather broadcasts, flight plans, and approach or landing decisions.