What is another word for sigmatism?
Pronunciation: [sˈɪɡmətˌɪzəm] (IPA) 
Sigmatism refers to the speech impediment that can make the pronunciation of the letter 's' difficult for some people. There are several other synonyms for this condition, including lisping, sibilancy, and whistle speech. These terms are used to describe the way in which someone might pronounce the 's' sound with a hissing or whistling quality. Other alternative terms for sigmatism include frontal lisping, dentalized sibilants, and inter-dentalized sibilants. While these terms may not be as well-known as sigmatism, they are still useful for describing this speech impediment and can be used interchangeably in conversation or medical contexts.
