# permutation

*permutation*on Thesaurus.com

the act of permuting or permutating; alteration; transformation.

Mathematics.

the act of changing the order of elements arranged in a particular order, as abc into acb, bac, etc., or of arranging a number of elements in groups made up of equal numbers of the elements in different orders, as a and b in ab and ba; a one-to-one transformation of a set with a finite number of elements.

any of the resulting arrangements or groups.: Compare combination (def. 8b).

## Origin of permutation

^{1}

## Other words for permutation

## Other words from permutation

- per·mu·ta·tion·al, adjective
- per·mu·ta·tion·ist, noun

## Words Nearby permutation

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

## How to use permutation in a sentence

It’s a hokey setup, but Duchovny is spiritedly determined to work through the various permutations of this man-and-Mammon tale.

David Duchovny wants to be taken seriously as a novelist. His new book makes a good case. | Mark Athitakis | February 1, 2021 | Washington PostRejewski applied the branch of mathematics devoted to permutations to the problem — an approach that would look obvious only after he used it.

Hackers thrive on the weak link in cybersecurity: People | Gershom Gorenberg | February 1, 2021 | Washington PostThat a story set in 19th-century England thrives in this country so ubiquitously, in so many permutations, remains a bit of a wonder.

Theaters are shut, but ‘A Christmas Carol’ is forever. The endless variety online proves it. | Peter Marks | December 17, 2020 | Washington PostThis problem was equivalent to finding the probability that a random

*permutation*of five people was also a derangement, meaning no one wound up in their own starting position.How High Can You Count With Menorah Math? | Zach Wissner-Gross | December 11, 2020 | FiveThirtyEightUsually in order to find them you need to go fishing in the sea of permutations of different elements.

The Manson family was its most grotesque and dangerous

*permutation*.The economic reform wrought is largely of the nature of a

*permutation*in the methods of conspicuous waste.The Theory of the Leisure Class | Thorstein VeblenWe may thus select the four coins in one hundred ways, and the four removed may be arranged by

*permutation*in twenty-four ways.Amusements in Mathematics | Henry Ernest DudeneyThis

*permutation*is made very convenient by the sentences being printed in sections which may be moved about and combined at will.Montessori Elementary Materials | Maria MontessoriNevertheless, it is much easier to give the child a vivid impression of them by the

*permutation*of parts than by explanation.Montessori Elementary Materials | Maria MontessoriReputable authority can be quoted in behalf of every possible

*permutation*of doctrine.Reconstruction in Philosophy | John Dewey

## British Dictionary definitions for permutation

/ (ˌpɜːmjʊˈteɪʃən) /

maths

an ordered arrangement of the numbers, terms, etc, of a set into specified groups: the permutations of a, b, and c, taken two at a time, are ab, ba, ac, ca, bc, cb

a group formed in this way. The number of permutations of n objects taken r at a time is n !/(n – r)!: Symbol: n P r Compare combination (def. 6)

a combination of items made by reordering

an alteration; transformation

a fixed combination for selections of results on football pools: Usually shortened to: perm

## Origin of permutation

^{1}

## Derived forms of permutation

- permutational, adjective

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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