The Raised Hand emoji (β) is one of the most powerful and multi-functional gestures in the Unicode set. Depending on the context, it can mean "Stop!", "Wait!", or even "Give me a high five!"
In traffic and safety contexts, the open palm β is the definitive signal to Stop or halt progress. It's often used online to set boundaries or pause a fast-moving conversation.
When used in pairs ββ or with a smiling face, it represents a High Five. It's a celebratory gesture shared between friends to acknowledge a success or shared excitement.