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.n. A piece of metal or wood, forming a support to equalize pressure; a brass; a pillow block.n. A block under the inner end of a bowsprit.n. A kind of plain, coarse fustian.v. To rest or lay upon, or as upon, a pillow; to support.