the abbreviation for TransWorld Airlines, Inc., a majorAmerican passengerairline company. Founded in 1930, TWA was the first airline to offer scheduled flights from coast to coast in the USA. In 1945 it initiated its first overseas flights, taking passengers from Washington, DC, to Paris, France. Over the next several years TWA broadened its overseas routes and grew to be one of the ten largest air carriers in the world.TransWorld Airlines, a major passenger-airline company.