[1] : The Collaborative International Dictionary of English v.0.48

pillow \pil"low\, n. oe. pilwe, as. pyle, fr. l. pilvinus.
   1. 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.
      1913 webster

            resty sloth finds the down pillow hard. --shak.
      1913 webster

   2. mach. a piece of metal or wood, forming a support to
      equalize pressure; a brass; a pillow block. r.
      1913 webster

   3. naut. a block under the inner end of a bowsprit.
      1913 webster

   4. a kind of plain, coarse fustian.
      1913 webster

   lace pillow, a cushion used in making hand-wrought lace.

   pillow bier oe. pilwebere; cf. lg. b"ure a pillowcase,
      a pillowcase; pillow slip. obs. --chaucer.

   pillow block mach., a block, or standard, for supporting
      a journal, as of a shaft. it is usually bolted to the
      frame or foundation of a machine, and is often furnished
      with journal boxes, and a movable cover, or cap, for
      tightening the bearings by means of bolts; -- called also
      pillar block, or plumber block.

   pillow lace, handmade lace wrought with bobbins upon a lace
      pillow.

   pillow of a plow, a crosspiece of wood which serves to
      raise or lower the beam.

   pillow sham, an ornamental covering laid over a pillow when
      not in use.

   pillow slip, a pillowcase.
      1913 webster
see also:
lace pillow pillow bier pillow block pillar block plumber block pillow lace 
pillow of a plow pillow sham pillow slip 

[2] : WordNet (r) 2.0

pillow slip
     n : bed linen consisting of a cover for a pillow; "the burglar
         carried his loot in a pillowcase" syn: case, pillowcase,
          slip
see also:
case pillowcase slip 

Pillow >> P Words
Pillow, definition of term: Pillow
pillow_pag1.html

Slip >> S Words
Slip, definition of term: Slip
slip_pag1.html

Slip Up >> S Words
Slip Up, definition of term: Slip Up
slip+up_pag1.html

Slip Road >> S Words
Slip Road, definition of term: Slip Road
slip+road_pag1.html

Slip Away >> S Words
Slip Away, definition of term: Slip Away
slip+away_pag1.html

Slip Ring >> S Words
Slip Ring, definition of term: Slip Ring
slip+ring_pag1.html

Pink Slip >> P Words
Pink Slip, definition of term: Pink Slip
pink+slip_pag1.html