If this is done, the cauliflower will darken and break into pieces.
He saw the thundercloud arise that was to darken the horizon.
He saw the blighting shadow of Asgill begin to darken the scene.
The man, whoever he was, did not darken the lighted doorway.
He was always on the look-out for his brother, as soon as the sky began to darken.
He colored and his eyes seemed ...