He fell to the floor with the wind knocked out of him.
They fell to the sidewalk, the wind knocked out of them.
"At the very least she's got the wind knocked out of her."
This is called "having the wind knocked out of you."
He had gotten the wind knocked out of himself, too.
The wind, in turn, knocked the sword away from him.
If I so much as raise my head, the wind will knock me backwards.
He landed on his back, the wind knocked out of him.
He was starting to get used to having the wind knocked out of him.
She fell face down on the floor, the wind knocked out of her.