The Collaborative International Dictionary of English v.0.48:

Sash \Sash\, n. [Pers. shast a sort of girdle.]
   A scarf or band worn about the waist, over the shoulder, or
   otherwise; a belt; a girdle, -- worn by women and children as
   an ornament; also worn as a badge of distinction by military
   officers, members of societies, etc.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Sash \Sash\, v. t.
   To adorn with a sash or scarf. --Burke.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Sash \Sash\, n. [F. ch[^a]ssis a frame, sash, fr. ch[^a]sse a
   shrine, reliquary, frame, L. capsa. See Case a box.]
   1. The framing in which the panes of glass are set in a
      glazed window or door, including the narrow bars between
      the panes.
      [1913 Webster]

   2. In a sawmill, the rectangular frame in which the saw is
      strained and by which it is carried up and down with a
      reciprocating motion; -- also called gate.
      [1913 Webster]

   French sash, a casement swinging on hinges; -- in
      distinction from a vertical sash sliding up and down.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Sash \Sash\, v. t. [imp. & p. p. Sashed; p. pr. & vb. n.
   Sashing.]
   To furnish with a sash or sashes; as, to sash a door or a
   window.
   [1913 Webster]

WordNet (r) 3.0 (2006):

sash
    n 1: a framework that holds the panes of a window in the window
         frame [syn: sash, window sash]
    2: a band of material around the waist that strengthens a skirt
       or trousers [syn: girdle, cincture, sash, waistband,
       waistcloth]

Moby Thesaurus II by Grady Ward, 1.0:

20 Moby Thesaurus words for "sash":
   cadre, case, casement, casing, chassis, cincture, doorframe,
   fabric, frame, framework, framing, girdle, lattice, latticework,
   picture frame, shell, skeleton, waistband, window case,
   window frame