equalization vs matching

equalization

noun
  • The act of equalizing, or state of being equalized. 

  • Repayment to an investor in a unit trust or OEIC of an increase in the unit price to cover the seller’s entitlement to income received from the underlying investments but not yet distributed to unit holders, repaid as part of the first distribution of income to that investor. 

  • Maneuvers to balance the pressure in the middle ear with the outside pressure by letting air enter along the Eustachian tubes. 

matching

noun
  • The process by which things are matched together or paired up. 

  • A set of independent edges in a given graph, i.e. a set of edges which do not intersect, such that pairs of vertices are "matched" to each other one to one. 

adj
  • The same as another; sharing the same design. 

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