Before his head sank below the level of the floor he heard a rolling series of thunderous noises.

He saw the red band narrowing, starting to sink below the level of his flesh.

The road met the path of a wide river as the sun westered and sank below the level of the treetops.

He was sinking through the clouds, below the level where any form of life was possible.

He slept as an old man sleeps, fitfully, never sinking very deep below the level of consciousness.

As soon as he sank below the level of the inner hatch, it rotated shut.

And all heard single pure sounds, of varying pitch, that swiftly sank below the level of hearing.

Slowly the seaward houses sank below the level of the canal; to begin with parallel to bedroom windows, finally above roof level.

As they sank below the level of the sun-rays, Murgatroyd turned on both the searchlights.

It is sunk thousands of feet below the level of the surrounding country, like a great round bowl.