Here’s how to teach Siri to pronounce words properly with your iPhone:
1. Press and hold down the Home button on your iPhone to activate Siri.
2. Say something that coaxes Siri into incorrectly saying the word or name in question, e.g. “Siri, how do you pronounce my name?”
3. Now tell her she is saying it wrong, making sure to use her pronunciation – in my case: “Siri, that’s not how you say Jayne.”