[American automobile] The Komet was an American automobile manufactured only in 1911. A four-cylinder car, it was built by Sterling of Elkhart, Indiana. ...
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http://en.wikipedia.org/wiki/Komet_(American_automobile)
[German automobile] The Komet was a German automobile manufactured from 1922 until 1924 by Komet Autofabrik Buchmann & Co of Leisnig. It was later made by another company as the Kenter, it had a 1060 cc Steudel engine. David Burgess Wise, The New Illustrated Encyclopedia of Automobiles ...
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http://en.wikipedia.org/wiki/Komet_(German_automobile)
[train] The Komet (German for The Comet) is an international overnight express train service between Germany and Switzerland. Its name reflects the notion that the Comet train and an actual comet can both be described as travelling through the night at high speed. It has been in operation since 1954. It became a EuroCity (EC) service upon t...
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http://en.wikipedia.org/wiki/Komet_(train)

Komet is a cultivated variety of potato.
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http://www.probertencyclopaedia.com/browse/QK.HTM
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