What does the double check mark mean in WhatsApp?

In WhatsApp, the double check mark (✓✓) typically indicates that a message has been successfully delivered to the recipient's device. Here's what each check mark signifies:

1. **Single Grey Check Mark (✓)**: This means that your message has been successfully sent from your device.

2. **Double Grey Check Marks (✓✓)**: This indicates that your message has been successfully delivered to the recipient's device. It does not necessarily mean that the recipient has seen the message yet, just that it has reached their phone.

It's important to note that these check marks do not indicate whether the recipient has read the message; they only show the status of message delivery. If the recipient has read your message, you would typically see the check marks turn blue (✓✓), depending on their privacy settings and whether Read Receipts are enabled.

In group chats, the double grey check marks will appear when all participants in the group have received your message.