1Land in the form of a plot or plots; the area or value of such land, especially when aggregated from smaller plots.

2The increase in the value of a formerly subdivided piece of land resulting from its amalgamation under a single ownership; the value of such an increase (in full "plottage increment").

3The plotting of a play, film, etc. Only in "a mess of plottage": a convoluted or poorly constructed dramatic plot; a play with such a plot.