A message sent quickly, as a shipment, a prompt settlement of a business, or an important official message sent by a diplomat, or military officer.

The act of doing something quickly.

“We must act with dispatch in this matter.”

A mission by an emergency response service, typically attend to an emergency in the field.

To send (a shipment) with promptness.

To send (a person) away hastily.

To send (an important official message) promptly, by means of a diplomat or military officer.