The crossword solution for the term 'airport sign' is 'arrivals, ' which is an 8-letter word. An airport sign is a sign that is placed at an airport to provide information to travelers. It typically includes information about arrivals and departures, as well as other important information such as directions, safety regulations, and more. The specific term 'arrivals' refers to the arrival of flights at the airport, and is usually indicated on an airport sign.