prop

prop (http://definr.com/prop)

     n 1: a support placed beneath or against something to keep it
          from shaking or falling
     2: any movable articles or objects used on the set of a play or
        movie; "before every scene he ran down his checklist of
        props" [syn: property]
     3: a propeller that rotates to push against air [syn: {airplane
        propeller}, airscrew]
     v : support by placing against something solid or rigid; "shore
         and buttress an old building" [syn: prop up, shore up,
          shore]