Definition: The word 'houston airport' is an abbreviation that stands for Houston International Airport, located in Houston, Texas. The airport was opened in 1927 and is one of the busiest airports in the US. It handles over 40 million passengers annually and offers a range of services, including international flights, cargo handling, and aviation training.<0x0A>In terms of detailed definition, 'houston airport' means an airport that serves as a hub for commercial aviation operations. This includes both domestic and international flights, as well as cargo transportation. The airport offers various amenities such as restaurants, hotels, shops, and services to passengers. It has become one of the most important hubs in the US for air travel.