This is the 14396th most frequent German word.
jüdisches
"Jüdisches" means "Jewish" (adjective or noun referring to something related to Judaism or Jewish culture).
The word 'jüdische' here is used as an adjective describing the museum as related to Jewish culture.
Das jüdische Museum in Berlin ist ein bedeutendes Kulturzentrum.
The Jewish Museum in Berlin is an important cultural center.
'Jüdisches' functions again as an adjective, here modifying the noun 'Essen' to specify it as Jewish cuisine.
Er interessiert sich für jüdisches Essen und dessen kulturelle Bedeutung.
He is interested in Jewish cuisine and its cultural significance.
In this case, 'jüdische' qualifies the noun 'Traditionen,' underlining their origin from Jewish culture.