area vs locus

area

noun
  • 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. 

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

  • Genitals. 

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

  • Penalty box; penalty area. 

locus

noun
  • A place or locality, especially a centre of activity or the scene of a crime. 

  • A fixed position on a chromosome that may be occupied by one or more genes. 

  • The set of all points whose coordinates satisfy a given equation or condition. 

  • A passage in writing, especially in a collection of ancient sacred writings arranged according to a theme. 

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