Which motion cannot interrupt a speaker?

The motion to adjourn cannot interrupt a speaker because it is a privileged motion that is designed to conclude the meeting. Privileged motions, such as adjourn, take precedence over other motions but do not allow for interruption of someone currently speaking. Instead, they can be raised at any time to bring discussions to a close, but they must wait until the current speaker has finished before being considered or acted upon.

In contrast, other motions like a point of order or calling for the orders of the day are designed to maintain order and can be raised at any time, including while another member is speaking. Appeal the decision also allows for interruption, as it pertains to challenging a ruling made by the chair during a discussion. Understanding the order and nature of these motions is crucial for effective parliamentary procedure and ensuring smooth meetings.