How to use "grille" in a sentence

At the foot of the smaller barricade, half-hidden by broken stones and pieces of wood, there was a hole in the road covered with an iron grille

Valjean leapt forward and, using all his strength, he moved the stones and wood, opened the grille, lifted Marius on to his shoulders and climbed down into the darkness.

He could just see, by the grey light from the grille above his head, that he was surrounded by walls

The soldiers might discover the grille by the barricade at any moment, and come down in search of him.

At last, exhausted, he stopped beneath a large grille that brought him much-needed light and fresh air

"Father?" he says, but there is no reply, and he can see no movement behind the grille that separates his small space from the other.

But after a few minutes he realises how tired he is, and he thinks that maybe he can close his eyes for a moment and even rest his head against the grille.

Barry tries to see the face through the grille, but there is only a dark shape.