clustering vs massive

clustering

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

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

  • A grouping of a number of similar things. 

  • 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. 

adj
  • Forming a cluster. 

massive

noun
  • A group of people from a locality, or sharing a collective aim, interest, etc. 

  • A homogeneous mass of rock, not layered and without an obvious crystal structure. 

adj
  • Very large or bulky and heavy and solid. 

  • Outstanding, beautiful. 

  • Not having an obvious crystalline structure. 

  • Having any mass. 

  • Having a large mass. 

  • To a very great extent; total, utter. 

  • Of particularly exceptional quality or value; awesome. 

  • Affecting a large portion of the body, or severe. 

  • Homogenous, unstructured. 

  • Very large in size or extent. 

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