The Collaborative International Dictionary of English v.0.48:

Sew \Sew\, v. t. [imp. Sewed; p. p. Sewed, rarely Sewn; p.
   pr. & vb. n. Sewing.] [OE. sewen, sowen, AS. si['o]wian,
   s[imac]wian; akin to OHG. siuwan, Icel. s?ja, Sw. sy, Dan.
   sye, Goth. siujan, Lith. siuti, Russ, shite, L. ssuere, Gr.
   ????, Skr. siv. [root]156. Cf. Seam a suture, Suture.]
   1. To unite or fasten together by stitches, as with a needle
      and thread.
      [1913 Webster]

            No man also seweth a piece of new cloth on an old
            garment.                              --Mark ii. 21.
      [1913 Webster]

   2. To close or stop by ssewing; -- often with up; as, to sew
      up a rip.
      [1913 Webster]

   3. To inclose by sewing; -- sometimes with up; as, to sew
      money in a bag.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Sewing \Sew"ing\, n.
   1. The act or occupation of one who sews.
      [1913 Webster]

   2. That which is sewed with the needle.
      [1913 Webster]

   Sewing horse (Harness making), a clamp, operated by the
      foot, for holding pieces of leather while being sewed.

   Sewing machine, a machine for sewing or stitching.

   Sewing press, or Sewing table (Bookbinding), a fixture or
      table having a frame in which are held the cords to which
      the back edges of folded sheets are sewed to form a book.
      [1913 Webster]

WordNet (r) 3.0 (2006):

sewing
    n 1: joining or attaching by stitches [syn: sewing,
         stitching]
    2: needlework on which you are working with needle and thread;
       "she put her sewing back in the basket" [syn: sewing,
       stitchery]

Moby Thesaurus II by Grady Ward, 1.0:

72 Moby Thesaurus words for "sewing":
   Smyth sewing, applique, backing, baste, bibliopegy, bind,
   binder board, binding, book cloth, book cover, book jacket,
   bookbinding, bookcase, buttonhole, case, casemaking, casing-in,
   collating, collating mark, cover, crochet, cross-stitch,
   dust cover, dust jacket, embroider, fell, folding, footband,
   gather, gathering, gluing-off, hard binding, headband, jacket,
   knit, library binding, lining, lining-up, machine-stitch,
   mechanical binding, niggerhead, overcast, overhand,
   perfect binding, plastic binding, purl, quilt, renter, rounding,
   run, saddle stitching, saddle-stitch, seam, side sewing, signature,
   single-stitch, slipcase, slipcover, smashing, soft binding,
   spiral binding, stamping, stapling, tack, tailband, tat, tipping,
   trimming, whip, whipstitch, wire stitching, wrapper