WordWeb Online

1. A planner who draws up a personal scheme of action
   "a double-faced infernal traitor and plotter";
   - schemer
    
2. A clerk who marks data on a chart
   - mapper
    
3. A member of a conspiracy
   - conspirator, coconspirator, machinator
    
4. An instrument (usually driven by a computer) for drawing graphs or pictures

Derived forms: plotters

Type of: clerk, contriver, crim [Brit, informal], criminal, crook [informal], deviser, felon, instrument, malefactor [formal], outlaw, planner

Part of: confederacy, conspiracy

Encyclopedia: Plotter