Aviation codes are standardized designations used in the aviation industry to identify airlines, airports, and aircraft. These codes help streamline communication and ensure clarity in operations. For example, the International Civil Aviation Organization (ICAO) assigns unique four-letter codes to airports, while the International Air Transport Association (IATA) uses three-letter codes for airlines and airports. These codes are essential for flight planning, ticketing, and air traffic control. They help avoid confusion, especially in international travel, where multiple languages and systems are involved. Understanding these codes, such as IATA and ICAO, is crucial for anyone working in or traveling through the aviation sector.