The extent of the damage. The full extent of the law. To a certain extent she was right.
source: WordNet 3.0
the distance or area or volume over which something extends
The vast extent of the desert. An orchard of considerable extent.
source: WordNet 3.0
Space or degree to which a thing is extended; hence, superficies; compass; bulk; size; length; as, an extent of country or of line; extent of information or of charity.