Deep within the boiling black clouds, he saw occasional flickers of lightning.

Giving off an occasional flicker, their lantern warned that its light would soon be out.

All we read is an occasional flicker, like heat lightning.

He could go faster while occasional flickers of daylight still persisted.

Above him, he could see the occasional flicker of blue light across the sky.

The occasional new flicker of hope is treated warily.

There is an occasional flicker of comic interest, but by the end the best thing that can be said about "Ouch!"

Still, an occasional flicker of doubt was momentarily present.

There are occasional flickers of light in the darkness.

All he saw was the occasional flicker of a shell heading east through breaks in the trees.