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

sheet \sheet\, n. oe. shete, schete, as. sc=ete, sc=yte,
   fr. sce'at a projecting corner, a fold in a garment akin
   to d. schoot sheet, bosom, lap, g. schoss bosom, lap, flap of
   a coat, icel. skaut, goth. skauts the hem of a garment;
   originally, that which shoots out, from the root of as.
   sce'otan to shoot. root159. see shoot, v. t.
   in general, a large, broad piece of anything thin, as paper,
   cloth, etc.; a broad, thin portion of any substance; an
   expanded superficies. specifically:
   a a broad piece of cloth, usually linen or cotton, used for
       wrapping the body or for a covering; especially, one used
       as an article of bedding next to the body.
       1913 webster

             he fell into a trance, and saw heaven opened, and a
             certain vessel descending unto him, as it had been
             a great sheet knit at the four corners. --acts x.
                                                  10, 11.
       1913 webster

             if i do die before thee, prithee, shroud me
             in one of those same sheets.         --shak.
       1913 webster
   b a broad piece of paper, whether folded or unfolded,
       whether blank or written or printed upon; hence, a
       letter; a newspaper, etc.
   c a single signature of a book or a pamphlet; in pl., the
       book itself.
       1913 webster

             to this the following sheets are intended for a
             full and distinct answer.            --waterland.
       1913 webster
   d a broad, thinly expanded portion of metal or other
       substance; as, a sheet of copper, of glass, or the like;
       a plate; a leaf.
   e a broad expanse of water, or the like. "the two beautiful
       sheets of water." --macaulay.
   f a sail. --dryden.
   g geol. an extensive bed of an eruptive rock intruded
       between, or overlying, other strata.
       1913 webster

   2. as. sce'ata. see the etymology above. naut.
      a a rope or chain which regulates the angle of
          adjustment of a sail in relation in relation to the
          wind; -- usually attached to the lower corner of a
          sail, or to a yard or a boom.
      b pl. the space in the forward or the after part of a
          boat where there are no rowers; as, fore sheets; stern
          sheets.
          1913 webster

   note: sheet is often used adjectively, or in combination, to
         denote that the substance to the name of which it is
         prefixed is in the form of sheets, or thin plates or
         leaves; as, sheet brass, or sheet-brass; sheet glass,
         or sheet-glass; sheet gold, or sheet-gold; sheet iron,
         or sheet-iron, etc.
         1913 webster

   a sheet in the wind, half drunk. sailors' slang

   both sheets in the wind, very drunk. sailors' slang

   in sheets, lying flat or expanded; not folded, or folded
      but not bound; -- said especially of printed sheets.

   sheet bend naut., a bend or hitch used for temporarily
      fastening a rope to the bight of another rope or to an
      eye.

   sheet lightning, sheet piling, etc. see under
      lightning, piling, etc.
      1913 webster
see also:
shoot a sheet in the wind both sheets in the wind in sheets sheet bend sheet lightning 
sheet piling lightning piling 

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

sheet \sheet\, v. t. imp.  p. p. sheeted; p. pr.  vb. n.
   sheeting.
   1. to furnish with a sheet or sheets; to wrap in, or cover
      with, a sheet, or as with a sheet. "the sheeted dead."
      "when snow the pasture sheets." --shak.
      1913 webster

   2. to expand, as a sheet.
      1913 webster

            the star shot flew from the welkin blue,
            as it fell from the sheeted sky.      --j. r. drake.
      1913 webster

   to sheet home naut., to haul upon a sheet until the sail
      is as flat, and the clew as near the wind, as possible.
      1913 webster
see also:
sheeted sheeting to sheet home 

[3] : WordNet (r) 2.0

sheet
     n 1: any broad thin expanse or surface; "a sheet of ice"
     2: used for writing or printing syn: piece of paper, sheet
        of paper
     3: bed linen consisting of a large rectangular piece of cotton
        or linen cloth; used in pairs syn: bed sheet
     4: mathematics an unbounded two-dimensional shape; "we will
        refer to the plane of the graph as the x-y plane"; "any
        line joining two points on a plane lies wholly on that
        plane" syn: plane
     5: newspaper with half-size pages syn: tabloid, rag
     6: a flat artifact that is thin relative to its length and
        width syn: flat solid
     7: nautical a line rope or chain that regulates the angle
        at which a sail is set in relation to the wind syn: tack,
         mainsheet, weather sheet, shroud
     8: a large piece of fabric as canvas by means of which wind
        is used to propel a sailing vessel syn: sail, canvas,
         canvass
     v 1: come down as if in sheets; "the rain was sheeting down
          during the monsoon"
     2: cover with a sheet, as if by wrapping; "sheet the body"
see also:
piece of paper sheet of paper bed sheet plane tabloid rag 
flat solid tack mainsheet weather sheet shroud 
sail canvas canvass 

[4] : Moby Thesaurus II by Grady Ward, 1.0

135 moby thesaurus words for "sheet":
   afghan, alabaster, area, article, back matter, bed linen,
   bedclothes, bedcover, bedding, bedsheet, bedspread, blanket, book,
   buffalo robe, cardboard, case, chalk, chapter, clause, clothes,
   coat, coating, collop, comfort, comforter, contour sheet,
   counterpane, cover, covering, coverlet, coverlid, cut, daily,
   daily newspaper, deal, disk, driven snow, eiderdown, expanse,
   extra, extra edition, fascicle, feuille, film, fitted sheet, flap,
   fleece, flour, foam, foil, fold, folio, front matter, gathering,
   gazette, ivory, journal, lamella, lamina, laminated glass,
   laminated wood, lamination, lap, lap robe, layer, leaf, lily,
   linen, maggot, membrane, milk, monthly, national newspaper,
   neighborhood newspaper, news, newspaper, newspaper of record,
   number, page, pane, panel, paper, paragraph, passage,
   patchwork quilt, patina, pearl, peel, pellicle, phrase,
   pillow slip, pillowcase, plait, plank, plate, plating, ply,
   plywood, quilt, quire, rag, rasher, ream, robe, rug, safety glass,
   scum, section, sentence, sheeting, signature, silver, skin, slab,
   slat, slice, slip, snow, special, special edition, spread,
   stationery, stratum, stretch, surface, swan, table, tablet,
   tabloid, text, veneer, verse, wafer, weekly, weekly newspaper

Sheet >> S Words
Sheet, definition of term: Sheet
sheet_pag1.html

Sheet Music >> S Words
Sheet Music, definition of term: Sheet Music
sheet+music_pag1.html

Sheet Pile >> S Words
Sheet Pile, definition of term: Sheet Pile
sheet+pile_pag1.html

Sheet Metal >> S Words
Sheet Metal, definition of term: Sheet Metal
sheet+metal_pag1.html

Sheet Iron >> S Words
Sheet Iron, definition of term: Sheet Iron
sheet+iron_pag1.html

Time Sheet >> T Words
Time Sheet, definition of term: Time Sheet
time+sheet_pag1.html

Tear Sheet >> T Words
Tear Sheet, definition of term: Tear Sheet
tear+sheet_pag1.html

Bed Sheet >> B Words
Bed Sheet, definition of term: Bed Sheet
bed+sheet_pag1.html

Lead Sheet >> L Words
Lead Sheet, definition of term: Lead Sheet
lead+sheet_pag1.html

Balance Sheet >> B Words
Balance Sheet, definition of term: Balance Sheet
balance+sheet_pag1.html