tent-fly
rainfly
fly sheet
fly **
tent flap

One of the girls ran to the tent flaps and looked out.

He stood to one side of the tent flap and held it open for them.

The tent flap opened and one of his guards looked inside.

He approached the man by the tent flap and looked him in the eye.

I never moved away from the tent flap, not for one moment.

One of us must go in with them or they'll never make it past the tent flap.

Even getting out through the tent flap wasn't so easy as it might have been.

He could not see even a line of light to indicate where the tent flap was.

After some minutes the tent flap was opened and two men stepped inside.

I said, but he had already disappeared through the tent flap.