noun

• (clothing) A piece of cloth designed to be worn around the waist.
• (clothing) A decorative length of cloth worn over the shoulder to the opposite hip, often for ceremonial or other formal occasions.
• (obsolete) Alternative spelling of shash (“the scarf of a turban”).
  "So much for the ſilk in Judea called Sheſh in Hebrevv, vvhence haply, that fine linen or ſilk is called Shaſhes vvorn at this day about the heads of eaſtern people."

verb

• (transitive) To adorn with a sash.
  "1796, Edmund Burke, Letters on a Regicide Peace, Letter IV to the Earl Fitzwilliam, in The Works of the Right Honourable Edmund Burke, London: C. and J. Rivington, 1826, Volume 9, p. 46, […] the Costume of the Sans-culotte Constitution of 1793 was absolutely insufferable […] but now they are so powdered and perfumed, and ribanded, and sashed and plumed, that […] there is something in it more grand and noble, something more suitable to an awful Roman Senate, receiving the homage of dependant Tetrarchs."

noun

• (software, graphical user interface) A draggable vertical or horizontal bar used to adjust the relative sizes of two adjacent windows.
• (sawmilling) The rectangular frame in which the saw is strained and by which it is carried up and down with a reciprocating motion; the gate.
• (chemistry) 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.
  "Each hood is equipped with two sliding sashes, glazed with polished plate wire-glass; […]"

verb

• (transitive) To furnish with a sash.
  "The old Bow-windows he will have preserv'd, but will not have them sash’d,"