Abstract: A computerized method for distribution among a multiple dictionaries of a target vocabulary. The vocabulary includes words for use in a speech recognition application installed in a computer system. Each word of the target vocabulary is found in only one of the dictionaries. The words are first categorized based on phonetic length, and distributed into multiple groups each of equal phonetic length. The first groups are secondly categorized based on combinations of vowel sounds. The words of the first groups are placed into second groups accordingly based on having identical vowel sounds. The second groups are thirdly categorized into third groups based on the consonants of the words of the second groups and placement of the consonants relative to the vowel sounds. The words within each of the third groups are compared in pairs for phonetic distance and the words of minimal pairwise phonetic distance between them are placed in fourth groups.