Tattle (verb)

To reveal or disclose information that is meant to be kept secret, especially in an eager or indiscreet manner.

Origin:

The word tattle comes from the middle english word "tataille" meaning "to prattle".

Examples:

1. Don't tattle on me, I don't want my parents to know what happened.
2. He's always tattling on his classmates, I don't think he's well-liked.
3. She's a tattletale, she always tells the teacher when someone is misbehaving.
4. Tattling can cause problems in relationships, it's best to keep secrets that are shared with you.
5. Tattling is not the same as reporting a serious crime or danger, it's important to know the difference.