sash

Short definition from Wiktionary

Noun

1. 1
   A piece of cloth designed to be worn around the waist.
2. 2
   A decorative length of cloth worn over the shoulder to the opposite hip, often for ceremonial or other formal occasions.
3. 3
   Alternative spelling of shash (“the scarf of a turban”).
4. 4
   The opening part of a window, usually containing the glass panes; either hinged to the jamb, or sliding up and down as in a sash window.
5. 5
   A draggable vertical or horizontal bar used to adjust the relative sizes of two adjacent windows.
6. 6
   The rectangular frame in which the saw is strained and by which it is carried up and down with a reciprocating motion; the gate.
7. 7
   A window-like part of a fume hood which can be moved up and down in order to create a barrier between chemicals and people.

Verb

1. 1
   To adorn with a sash.
2. 2
   To furnish with a sash.