A placeholder meeting is a temporary event scheduled in a calendar to reserve a specific date and time for a future meeting, ensuring that the time slot is not taken by other meetings. It is used when someone thinks a meeting will occur at a particular time/date but is not 100% sure, and for now, they are reserving the time. Placeholder meetings are not confirmed meetings, and they may or may not happen. They are used to hold a place on a calendar and not lose the free space to other meetings.

Placeholder meetings are not a standard feature of all calendar apps, but some apps allow users to create placeholders for meetings they have not responded to yet. To create a placeholder meeting, users can follow these steps:

1. Determine the purpose and goals of the meeting.
2. Choose the right participants.
3. Schedule the meeting at a time that works for most, if not all, participants.
4. Set the agenda.
5. Prepare necessary materials.
6. Establish communication channels.
7. Facilitate discussions.
8. Document outcomes.
9. Follow up on action items.

Placeholder meetings are not confirmed meetings, and they may or may not happen. They are used to hold a place on a calendar and not lose the free space to other meetings.