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In all the world, Twen (Train , Twen , ยี่สิบ) is a rare mostly masculine, but infrequently feminine given name. The first name Twen is habitual in Romania, where it is a rare masculine name, Algeria, and Morocco, where it is a very rare male name. Not in comparison with a country's population, it most frequently occurs in India, Indonesia, and Egypt. More frequently, Twen is the last name as well as the forename.
Twen is also a name for the fictitious and mythical characters: Train driver , the operatic character in the opera Der Besuch der alten Dame by Gottfried von Einem; Train Driver , the operatic character in the opera Through the Looking Glass; Train Heartnet , character in Black Cat and Train Driver , the musical character in the musical The Wind in the Willows by George Stiles.