This is the 13474th most frequent Russian word.
напор
"Напор" means "pressure, force, or intensity, often of water or effort."
In this sentence, 'напор' refers to pressure or force of a flow of water.
Напор воды в кране слишком слабый.
The water pressure in the tap is too weak.
Here, 'напор' describes an intense drive or determination to achieve a goal.
Он действовал с большим напором, добиваясь успеха.
He acted with great drive, achieving success.
In this instance, 'напор' refers to the pressure or force exerted by the wind.