cantilever vs sill

cantilever

noun
  • A beam anchored at one end and projecting into space, such as a long bracket projecting from a wall to support a balcony. 

  • A beam anchored at one end and used as a lever within a microelectromechanical system. 

  • A technique, similar to the spread eagle, in which the skater travels along a deep edge with knees bent and bends their back backwards, parallel to the ice. 

verb
  • To project (something) in the manner of or by means of a cantilever. 

sill

noun
  • A breast wall; window breast; horizontal brink which forms the base of a window. 

  • A young herring. 

  • The shaft or thill of a carriage. 

  • A stratum of rock, especially an intrusive layer of igneous rock lying parallel to surrounding strata. 

  • The inner edge of the bottom of an embrasure. 

  • A threshold; horizontal structural member of a building near ground level on a foundation or pilings, or lying on the ground, and bearing the upright portion of a frame; a sill plate. 

  • A threshold or brink across the bottom of a canal lock for the gates to shut against. 

  • A raised area at the base of the nasal aperture in the skull. 

adj
  • Silly. 

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