- "Interdental" lisping is produced when the tip of the tongue protrudes between the front teeth and "dentalised" lisping is produced when the tip of the tongue just touches the front teeth.
- The "lateral" lisp, where the and sounds are produced with air escaping over the sides of the tongue, is also called 'slushy ess' or a 'slushy lisp' due to the wet, spitty sound. The symbols for these Lateralized sounds are in the Extended International Phonetic Alphabet for speech disorders, and .
- Finally there is the "palatal lisp" where the speaker attempts to make the sounds with the tongue in contact with the palate.
