S or Z | Pronunciation | Learn English

Learn more at Typescript for 62 video English Lessons including this one: A bee buzzes. A snake hisses. When do we use the /s/ sound and when do we use the /z/ sound, and what’s the difference? The two sounds /s/ and /z/ are very close and cause endless confusion for students. There are some rules and the rules are normally to do with the voiced and unvoiced sounds.