flyer vs riser

flyer

noun
  • A standard rectangular step of a staircase (as opposed to a winder). 

  • A person who is lifted and/or thrown by another person or persons. 

  • That which flies, as a bird or insect. 

  • A machine that flies. 

  • A leaflet, often for advertising. 

  • The part of a spinning machine that twists the thread as it takes it to and winds it on the bobbin 

  • A leap or jump. 

  • A risky investment or other venture. 

  • A fast-moving person or thing. 

  • A false start 

  • An arch that connects a flying buttress into the structure it supports. 

  • A stray shot away from the group on a target. 

  • A person who travels by airplane. 

  • A female kangaroo; a roo; a doe; a jill. 

verb
  • To distribute flyers (leaflets). 

  • To distribute flyers in (a location) or to (recipients). 

riser

noun
  • The vertical part of a step on a staircase. 

  • a reservoir built into a metal casting mold to prevent the formation of cavities in the casting as the metal shrinks on cooling. 

  • A platform or stand used to lift or elevate something. 

  • A Manx cat with a showable short tail. 

  • A pipe connecting an individual exhaust port of an internal combustion engine to the muffler, particularly on aircraft. 

  • A strip of webbing joining a parachute's harness to the rigging lines. 

  • A vertical utility conduit, pipe or path between floors of a building for placement of cables (e.g. telephone, networking), or to convey fluids (e.g. gas, water). 

  • Someone or something which rises. 

  • The main body of a bow. 

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