How to pronounce the "s" at the end of pupils. What is the phonetic of this word.
In a comment, Peter Shor wrote:
It's a phonemic /z/. Sometimes native speakers might pronounce it in ways that sound more like /s/ to speakers of other languages (i.e., it's not always fully voiced), but if you pronounce it as a /z/ you should be understood perfectly. And if you pronounce it like an /s/ you may not be.