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Soundex Syllabification: Sound·ex
Pronunciation: /ˈsoundeks/

Definition of Soundex in English:


A phonetic coding system intended to suppress spelling variations, used especially to encode surnames for the linkage of medical and other records.
Example sentences
  • The Soundex system used by the U.S. government failed to consider this nuance when checking his documentation.
  • No patients' names are collected; instead surname Soundex codes are used and strict confidentiality of the data is maintained.
  • Clinics provided data in a pseudo-anonymised form, using Soundex codes derived from surnames.


1950s: from sound1 + the arbitrary ending -ex.

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