What does one checkmark mean in a WhatsApp group?

What does one checkmark mean in a WhatsApp group - briefly?

In a WhatsApp group, a single checkmark indicates that your message has been sent from your device but has not yet been delivered to the recipient's device.

What does one checkmark mean in a WhatsApp group - in detail?

In WhatsApp groups, the appearance of a single checkmark next to a message indicates that it has been successfully sent from your device. This mark serves as an initial confirmation that your message has left your phone and is now traveling through WhatsApp's servers towards its intended recipients in the group. However, it does not guarantee delivery or read receipt by any of the group members yet. For a more comprehensive understanding of message status, users should look for additional checkmarks or indicators that follow.