The Collaborative International Dictionary of English v.0.48:

Plot \Plot\, v. t.
   To plan; to scheme; to devise; to contrive secretly.
   "Plotting an unprofitable crime." --Dryden. "Plotting now the
   fall of others." --Milton
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Plot \Plot\, n. [AS. plot; cf. Goth. plats a patch. Cf. Plat a
   piece of ground.]
   1. A small extent of ground; a plat; as, a garden plot.
      --Shak.
      [1913 Webster]

   2. A plantation laid out. [Obs.] --Sir P. Sidney.
      [1913 Webster]

   3. (Surv.) A plan or draught of a field, farm, estate, etc.,
      drawn to a scale.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Plot \Plot\, v. t. [imp. & p. p. Plotted; p. pr. & vb. n.
   Plotting.]
   To make a plot, map, pr plan, of; to mark the position of on
   a plan; to delineate.
   [1913 Webster]

         This treatise plotteth down Cornwall as it now
         standeth.                                --Carew.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Plot \Plot\, n. [Abbrev. from complot.]
   1. Any scheme, stratagem, secret design, or plan, of a
      complicated nature, adapted to the accomplishment of some
      purpose, usually a treacherous and mischievous one; a
      conspiracy; an intrigue; as, the Rye-house Plot.
      [1913 Webster]

            I have overheard a plot of death.     --Shak.
      [1913 Webster]

            O, think what anxious moments pass between
            The birth of plots and their last fatal periods!
                                                  --Addison.
      [1913 Webster]

   2. A share in such a plot or scheme; a participation in any
      stratagem or conspiracy. [Obs.]
      [1913 Webster]

            And when Christ saith, Who marries the divorced
            commits adultery, it is to be understood, if he had
            any plot in the divorce.              --Milton.
      [1913 Webster]

   3. Contrivance; deep reach of thought; ability to plot or
      intrigue. [Obs.] "A man of much plot." --Denham.
      [1913 Webster]

   4. A plan; a purpose. "No other plot in their religion but
      serve God and save their souls." --Jer. Taylor.
      [1913 Webster]

   5. In fiction, the story of a play, novel, romance, or poem,
      comprising a complication of incidents which are gradually
      unfolded, sometimes by unexpected means.
      [1913 Webster]

            If the plot or intrigue must be natural, and such as
            springs from the subject, then the winding up of the
            plot must be a probable consequence of all that went
            before.                               --Pope.
      [1913 Webster]

   Syn: Intrigue; stratagem; conspiracy; cabal; combination;
        contrivance.
        [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Plot \Plot\ (pl[o^]t), v. i.
   1. To form a scheme of mischief against another, especially
      against a government or those who administer it; to
      conspire. --Shak.
      [1913 Webster]

            The wicked plotteth against the just. --Ps. xxxvii.
                                                  12.
      [1913 Webster]

   2. To contrive a plan or stratagem; to scheme.
      [1913 Webster]

            The prince did plot to be secretly gone. --Sir H.
                                                  Wotton.
      [1913 Webster]

WordNet (r) 3.0 (2006):

plot
    n 1: a secret scheme to do something (especially something
         underhand or illegal); "they concocted a plot to discredit
         the governor"; "I saw through his little game from the
         start" [syn: plot, secret plan, game]
    2: a small area of ground covered by specific vegetation; "a
       bean plot"; "a cabbage patch"; "a briar patch" [syn: plot,
       plot of land, plot of ground, patch]
    3: the story that is told in a novel or play or movie etc.; "the
       characters were well drawn but the plot was banal"
    4: a chart or map showing the movements or progress of an object
    v 1: plan secretly, usually something illegal; "They plotted the
         overthrow of the government"
    2: make a schematic or technical drawing of that shows
       interactions among variables or how something is constructed
       [syn: diagram, plot]
    3: make a plat of; "Plat the town" [syn: plat, plot]
    4: devise the sequence of events in (a literary work or a play,
       movie, or ballet); "the writer is plotting a new novel"

Moby Thesaurus II by Grady Ward, 1.0:

282 Moby Thesaurus words for "plot":
   acreage, acres, action, allotment, anagnorisis, angle, anticipate,
   approach, architectonics, architecture, area, argument, arrange,
   art, artful dodge, artifice, atmosphere, await, background,
   be destined, be fated, be imminent, be to be, be to come, blind,
   block, blueprint, brew, brouillon, cabal, calculate, cartoon,
   catastrophe, characterization, chart, chattels real, chicanery,
   clearing, clos, close, cogitate, collogue, collude, collusion,
   color, come, come on, complication, complicity, complot, compute,
   conceive, concoct, confederacy, connivance, connive, conniving,
   conspiracy, conspire, continuity, contraption, contrivance,
   contrive, contriving, cook up, copy, corn field, countermine,
   counterplot, coup, covin, craft, croft, cultivated land,
   cute trick, deceit, deep-laid plot, delineation, demesne,
   denouement, depict, design, determine, development, device, devise,
   diagram, dodge, domain, draft, draw, draw near, draw on, drawing,
   dream up, ebauche, elevation, enclave, engineer, engineering,
   episode, esquisse, expect, expedient, fable, fakement,
   falling action, feint, fetch, field, figure, finagle, finagling,
   find, finesse, fix, foresee, foretell, forethink, forty, frame,
   frame up, frame-up, gambit, game, gerrymander, gimmick, graph,
   grift, ground plan, grounds, hatch, hatch a plot, hatch up,
   hayfield, honor, hope, house plan, ichnography, incident, intrigue,
   jockey, jugglery, knavery, kraal, land, landed property, lands,
   lay, lay a plot, lay down, lay off, lay out, lie ahead, line,
   little game, local color, look for, look forward to, loom, lot,
   lots, machinate, machination, maneuver, maneuvering, manipulate,
   manipulation, manor, map, map out, mark off, mark out, messuage,
   mood, motif, move, movement, mythos, near, operate, organize,
   outline, pack, pack the deal, paddy, pale, parcel, parcel of land,
   patch, pattern, peripeteia, piece of land, plan, plat, play games,
   plot of ground, plot out, plotting, ploy, practice, praedium,
   prearrange, preconcert, preconsider, precontrive, predesign,
   predetermine, predict, premeditate, preorder, preresolve, profile,
   project, projection, property, prophesy, pull strings, quad,
   quadrangle, quadrat, racket, real estate, real property, realty,
   recognition, red herring, rice paddy, rig, rigging, rising action,
   rough, ruse, scenario, scheme, schemery, scheming, secondary plot,
   section, set out, set up, sew up, shift, show, skeleton, sketch,
   sketch out, slant, sleight, square, stack the cards, story,
   stratagem, strategy, structure, subject, subplot, subterfuge,
   switch, table, tactic, tenements, thematic development, theme,
   thread, threaten, toft, tone, topic, tract, trick, trickery, twist,
   underplot, wangle, web of intrigue, wheat field, wile, wily device,
   wire-pulling, work out beforehand, working drawing