A cushion of water that often forms on the upstream edge of large boulders. In big rapids the pillow is big enough to shove the bow or stern of a raft safely away from a boulder, a fact that boaters sometimes use to their advantage while running a rapid.

A gentle bulge on the surface of the water caused by an underwater obstruction. All such pillows have hard centers.

water that builds up around a rock in the main current. Pillows are stuffed with rock.

The water that piles up upstream of a rock or other obstruction, creating an area of boils, and folds that tends to keep boaters off the rock. Not all rocks form pillows.

To rest or lay upon, or as upon, a pillow; to support; as, to pillow the head.

lavas Pods of cooled lava that have the rounded appearance of pillows. Formed when lava enters the sea, whereupon the outer surface cools quickly, and the inner lava remains fluid for longer. Provides evidence for submarine volcanic eruptions.

a cushion to support the head of a sleeping person

rest on or as if on a pillow; "pillow your head"

a case filled with natural or man-made fibres designed to support the head, usually when resting or sleeping

a small (and usually soft) support for the head, usually used while sleeping in a bed or for the body as used on a couch or chair

a soft cushion that you can rest upon

A block of timber fixed to the deck of a sailing vessel just inside the bow on which the inboard end of the bowsprit rests.

A block, which supports the inner end of the bowsprit.

A shaped rectangular design with flowers, foliage and/or moss tightly clustered over the plastic foam surface. A swag of fresh flowers often accents the rectangular shape. The design symbolizes the beauty of eternal rest.

Resting places for parts of the anatomy yearning for a soft touch, including the neck, head, back and arms.