Index or listing of words in a book or text; agreement.
Book containing an alphabetical list of the important words in a major work, with reference to the places in which they occur. The first concordance was one for the Latin Vulgate Bible compiled by a Dominican monk in the 13th century.
Alexander Cruden composed a concordance of the Bible in 1737, of which many editions have appeared. Concordances to Shakespeare, Milton, and other writers also appear in many editions.

A list of words that appear in a document, along with the contexts of the appearances.