Soundex meaning

A system for coding English words based on their sound rather than their spelling. Developed in the early 20th century, a Soundex is used to index and match words. The vowels are dropped, and all remaining consonants are assigned three digits except for the first, which is the first letter of the word. There have been several variants of Soundex, but there are far more sophisticated methods for coding speech in today's voice recognition systems. See voice recognition.
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(informatics) A phonetic algorithm for indexing names by their English pronunciation, based on the most probably significant consonants, so that a search for a misspelled name may find the desired one.
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Origin of soundex