This is the 4975th most frequent Russian word.
кремлевский
"Kремлевский" means "Kremlin-related" or "of the Kremlin."
In this sentence, 'кремлёвская' is used as an adjective describing the square associated with the Kremlin, indicating a location.
Кремлёвская площадь была переполнена туристами.
The Kremlin square was crowded with tourists.
Here, 'кремлёвский' describes the souvenir, meaning it is related to or originated from the Kremlin.
Он купил кремлёвский сувенир на память о поездке.
He bought a Kremlin souvenir as a memory of the trip.
In this context, 'кремлёвский' is used to refer to a specific plan associated with the Kremlin, typically implying governmental or political actions.