pillowcase vs sash

pillowcase

noun
  • A washable, easily removable cloth cover for pillows. 

sash

noun
  • A piece of cloth designed to be worn around the waist. 

  • A draggable vertical or horizontal bar used to adjust the relative sizes of two adjacent windows. 

  • The opening part (casement) of a window usually containing the glass panes, hinged to the jamb, or sliding up and down as in a sash window. 

  • The rectangular frame in which the saw is strained and by which it is carried up and down with a reciprocating motion; the gate. 

  • 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. 

  • A decorative length of cloth worn over the shoulder to the opposite hip, often for ceremonial or other formal occasions. 

verb
  • To adorn with a sash. 

  • To furnish with a sash. 

How often have the words pillowcase and sash occurred in a corpus of books? (source: Google Ngram Viewer )