Standing up, she began to walk around the room, only to feel the floor slip away beneath her feet.
Sitting on the edge of the bed, he slipped a hand beneath her head.
Two or three slipped beneath the water and failed to surface.
"It was slipped into a crack beneath the front door."
He slipped his hands beneath the robe to feel her skin.
He slipped his hands beneath the layers of her clothes.
It was not enough to slip her fingers beneath his shirt.
She took her cool hand from his, patted him on the head as if he was a child, and slipped beneath the water.
As the ship slowly took on water, she slipped beneath the waves.
You are not worthy to have your life slip away beneath my fingers.