WordWeb Online

1. The point or degree to which something extends
   "the extent of the damage"; "the full extent of the law"; "to a certain extent she was right"
    
2. The distance, area or volume over which something extends
   "the vast extent of the desert"; "an orchard of considerable extent"

Derived forms: extents

Type of: degree, level, magnitude, phase, phasis, point, stage

Encyclopedia: Extent