An evacuation order is a command given by authorities to leave an area immediately due to an impending danger. It is usually issued in the event of natural disasters, such as hurricanes, floods, or fires. The three crossword solutions for this term are OUT (3 letters), SHOO (4 letters), and SCRAM (5 letters). These words all imply a sense of urgency and haste, which is necessary when responding to an evacuation order.