What is solid green dot on match?

As an AI language model, I am not sure about the context of 'match'. However, a solid green dot is often used as an icon or indicator to convey a specific message or status in various applications.

In some messaging applications, a solid green dot next to a user's name indicates that they are currently online and available to chat.

In some dating apps, a solid green dot may indicate that the user is currently active and looking for matches.

In some video conferencing applications, a solid green dot may indicate that the participant's microphone is turned on and they are currently speaking.

Without further context or information about the specific 'match' being referred to, it is difficult to provide a more detailed answer.