The aperture was so small, that the inmates had probably not thought it worth while to defend it more securely; but it was large enough to admit a boy of Oliver’s size, nevertheless.
The apertures, where doors and windows stood an hour ago, disclosed a mass of raging fire; walls rocked and crumbled into the burning well; the molten lead and iron poured down, white hot, upon the ground.
Some houses which had become insecure from age and decay, were prevented from falling into the street, by huge beams of wood reared against the walls, and firmly planted in the road; but even these crazy dens seemed to have been selected as the nightly haunts of some houseless wretches, for many of the rough boards which supplied the place of door and window, were wrenched from their positions, to afford an aperture wide enough for the passage of a human body.
He was preparing to ascend a steep staircase, or rather ladder, leading to another floor of warehouses above: when a bright flash of lightning streamed down the aperture, and a peal of thunder followed, which shook the crazy building to its centre.
But, from this aperture, he had never ceased to call on those without, to guard the back; and thus, when the murderer emerged at last on the house-top by the door in the roof, a loud shout proclaimed the fact to those in front, who immediately began to pour round, pressing upon each other in an unbroken stream.
There are no more uses of "aperture" in the book.
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The higher the f-stop, the more closed the camera’s aperture.
It wandered along the crest of the hill and terminated before a fragment of wall pierced by a rough aperture which had once been a door.