This is the 1759th most frequent German word.
jena
"Jena" is a city in Germany.
In this sentence, 'Jena' is used as a proper noun referring to a specific city.
Jena ist eine Stadt in Thüringen.
Jena is a city in Thuringia.
Here, 'Jena' acts as a locative proper noun indicating the location of the university.
Die Universität in Jena ist sehr bekannt.
The university in Jena is very well-known.
In this example, 'Jena' represents the location where the speaker had significant experiences.