plan vs project

plan

verb
  • To create a plan for. 

  • To intend. 

  • To design (a building, machine, etc.). 

  • To make a plan. 

noun
  • A drawing showing technical details of a building, machine, etc., with unwanted details omitted, and often using symbols rather than detailed drawing to represent doors, valves, etc. 

  • A subscription to a service. 

  • A set of intended actions, usually mutually related, through which one expects to achieve a goal. 

  • A method; a way of procedure; a custom. 

  • A two-dimensional drawing of a building as seen from above with obscuring or irrelevant details such as roof removed, or of a floor of a building, revealing the internal layout; as distinct from the elevation. 

project

verb
  • To make plans for; to forecast. 

  • To extend beyond a surface. 

  • To speak or sing in such a way that one can be heard from a large distance away. 

  • To assume qualities or mindsets in others based on one's own personality. 

  • To present (oneself), to convey a certain impression, usually in a good way. 

  • To change the projection (or coordinate system) of spatial data with another projection. 

  • (of a neuron or group of neurons) to have axon(s) extending to and therefore able to influence a remote location 

  • To cast (an image or shadow) upon a surface; to throw or cast forward; to shoot forth. 

  • To draw straight lines from a fixed point through every point of any body or figure, and let these fall upon a surface so as to form the points of a new figure. 

  • To extend (a protrusion or appendage) outward. 

noun
  • A planned endeavor, usually with a specific goal and accomplished in several steps or stages. 

  • a raw recruit who the team hopes will improve greatly with coaching; a long shot diamond in the rough 

  • An urban low-income housing building. 

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