This is the 12862nd most frequent Russian word.
лавке
"Лавке" means "bench" or "shop" in the dative/prepositional case in Russian.
The word 'лавке' here is in the prepositional case referring to the location (on the bench).
Мы сидели на лавке в парке.
We were sitting on the bench in the park.
The word 'лавке' here is in the prepositional case referring to the location (in the shop, which is also called a 'лавка').
Я купил орехи в сельской лавке.
I bought nuts in the village shop.
The word 'лавке' here describes the place (on the bench) in the prepositional case in relation to the action.