TWA Look up TWA at Dictionary.com
formed May 16, 1928, as Transcontinental Air Transport, merged 1930 with Western Air Express to form Transcontinental and Western Air Inc. (TWA). Name changed to Trans World Airlines 1950, but the moniker remained the same. Its last remnants were bought out by rival American Airlines in April 2001.
twa (n.) Look up twa at Dictionary.com
Scottish form of two.