IPA: /ˈvoʊkəlɪzəm/
KK: /ˈvoʊkəlɪzəm/
A system of vowel sounds used in a language or dialect, or the technique of using the voice in singing or speaking.
The vocalism of this language is quite unique, featuring a variety of vowel sounds.
Vocalism → It is formed from "vocal" (from Latin "vocalis", meaning relating to the voice) and "-ism" (a suffix used to form nouns indicating a practice or system). The word "vocalism" refers to a system or practice related to the use of the voice.
Think of 'vocal' which relates to the voice, and remember that 'vocalism' is about the practice or system of using the voice.