clustering vs plurality

clustering

noun
  • A grouping of a number of similar things. 

  • The undesirable contiguous grouping of elements in a hash table. 

  • A prewriting technique consisting of writing ideas down on a sheet of paper around a central idea within a circle, with the related ideas radially joined to the circle using rays. 

  • The grouping of a population based on ethnicity, economics or religion. 

adj
  • Forming a cluster. 

plurality

noun
  • A group of many entities: a large number. 

  • The holding of multiple benefices. 

  • A number or part of a whole which is greater than any other number or part, but not necessarily a majority. 

  • A margin by which a number exceeds another number, especially of votes. 

  • A state of being numerous. 

  • The condition of a single body/person displaying multiple distinct personas. 

  • The state of being plural. 

  • Polygamy. 

  • A group composed of more than one entity. 

  • A number of votes for a single candidate or position which is greater than the number of votes gained by any other single candidate or position voted for, but which is less than a majority of valid votes cast. 

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