area vs extent

area

noun
  • The extent, scope, or range of an object or concept. 

  • A particular geographic region. 

  • Any particular extent of surface, especially an empty or unused extent. 

  • An open space, below ground level, giving access to the basement of a house, and typically separated from the pavement by railings. 

  • Genitals. 

  • A measure of the extent of a surface; it is measured in square units. 

  • Penalty box; penalty area. 

extent

noun
  • A range of values or locations. 

  • A former tent; something (or someone) that was a tent but no longer is 

  • The valuation of property. 

  • A contiguous area of storage in a file system. 

  • The space, area, volume, etc., to which something extends. 

  • A writ directing the sheriff to seize the property of a debtor, for the recovery of debts of record due to the Crown. 

How often have the words area and extent occurred in a corpus of books? (source: Google Ngram Viewer )