1) German girl name 2) Lifestyle magazine 3) Three-wheeled motor vehicle 
French for 
[cipher] Libelle is a German cipher system, developed by the Federal Office for Information Security. The algorithm is not published, in an attempt to make cryptanalysis more difficult (following the principle of security through obscurity and against Kerckhoffs`s principle). In order to keep the algorithm secret, it is only distributed as ...[flying toy] Libelle is the name of a German air-borne toy made by SCHENY in late `50s or early `60s ...[literary genre] Perhaps the most numerous and scathing libelles came out of the two decades prior to the French Revolution. Darnton lists five ways in which the libelles of the 1770s and 1780s differed from their ancestors. First, the later libelles differed in their scale. Eighteenth-century libelles were much heftier volumes than their s...[microcar] The Libelle was an Austrian three-wheeled microcar built in Innsbruck by Libelle Fahrzeugbau- und Vertriebsgesellschaft between 1952 and 1954. One cylinder two-stroke Rotax engine with 199 cm³ and 8,5 HP and 4 gears. About 50 are believed to have been built; the only known `survivor` is in the exposition of the RRR scooter museu...
Libelle is a cultivated variety of potato.