In this video, we will talk about when you pronounce 'S' as a 'Z' at the end of words in American English. There are many commonly used short words in American English where the 'S' is pronounced as a 'Z' -- is, has, was, etc. We also pronounce it as a 'Z' at the end of certain plural words -- dogs, judges, etc. Learn more about when to pronounce 'S' as 'Z'.