# SOUNDEX Soundex is a **phonetic algorithm** that converts English words into groups of character strings based upon their pronunciation. {% hint style="info" %} > far / fear / four / free > > desert / discard / discreet / decorate > > music / magic / massage / mixes > {% endhint %} {% hint style="warning" %} It distinguishes between **six phonetic classifications** (bilabial, labiodental, dental, alveolar, velar, and glottal) which are derived from the position of the tongue and lips when a sound is produced. Any character string is limited to a length of four digits which makes the Soundex algorithm less accurate than other types of rhyme. {% endhint %} For dictionary entries with multiple words Rhyme Genie always matches the final word of the phrase. To find only single words simply deselect the phrases, proper nouns and charted songs options. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://rhyme-genie-user-guide.idolumic.com/rhyme-type-reference-1/rhyme-type-reference-overview/soundex.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.