Soundex noun 1verb 1forms 4 noun1 •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.Basically, the Soundex algorithm converts each string into an alphanumeric code that begins with the first letter of the string. — 2022 verb1 •To index using the phonetic Soundex algorithm. formsSoundexed · Soundexing · Soundexes · soundexes