1. (n.) Anything used to support the head of a person when reposing; especially, a sack or case filled with feathers, down, hair, or other soft material.

2. (n.) A piece of metal or wood, forming a support to equalize pressure; a brass; a pillow block.

3. (n.) A block under the inner end of a bowsprit.

4. (n.) A kind of plain, coarse fustian.

5. (v. t.) To rest or lay upon, or as upon, a pillow; to support; as, to pillow the head.