riser >> ˈrʌɪzə
Definition: [noun] a person who habitually gets out of bed at a particular time of the morning.
Example: late risers always exasperate early risers
Definition: [noun] a vertical section between the treads of a staircase.
Example: make risers low and treads deep
Definition: [noun] a vertical pipe for the upward flow of liquid or gas.
Example: this pressure carries water through the risers to the upper floors
Definition: [noun] a low platform on a stage or in an auditorium, used to give greater prominence to a speaker or performer.
Example: he fell backwards off the riser
Definition: [noun] a strip of webbing joining the harness and the rigging lines of a parachute or paraglider.
Example: constantly adjust the risers to keep the wing overhead