Merriam-Webster's Collegiate® Dictionary, 11th Edition
PLOT
I. noun
Etymology: Middle English, from Old English Date: before 12th century
1. a small area of planted ground , a small piece of land in a cemetery, a measured piece of land ; lot , ground plan , plat , the plan or main story (as of a movie or literary work), a secret plan for accomplishing a usually evil or unlawful end ; intrigue , a graphic representation (as a chart), plotless adjective plotlessness noun Synonyms: see: plot see: plan
II. verb (plotted; plotting)
Date: 1588
transitive verb
1. to make a plot, map, or plan of, to mark or note on or as if on a map or chart, to lay out in plots,
3. to locate (a point) by means of coordinates, to locate (a curve) by plotted points, to represent (an equation) by means of a curve so constructed, to plan or contrive especially secretly, to invent or devise the plot of (as a movie or a literary work), intransitive verb to form a plot ; scheme , to be located by means of coordinates