#spread__spreading  act of extending over a wider scope or expanse of space or time
  supertype:  extension  act of expanding in scope; making more widely available: "extension of the program to all in need"
  subtype:  dispersal__dispersion__dissemination__diffusion  the act of dispersing or diffusing something; "the dispersion of the troops"; "the diffusion of knowledge"
     subtype:  crop-dusting__spraying  the dispersion of fungicides or insecticides or fertilizer on growing crops (often from a low-flying aircraft)
  subtype:  strewing__scatter  the act of scattering
  subtype:  decentralization__decentralisation  the spread of power away from the center to local branches or governments

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