This is the 735th most frequent Estonian word.
meistrivõistluste
"Meistrivõistluste" means "championships" in English.
In this sentence, 'meistrivõistluste' is in the genitive case, indicating possession or an attributive relationship to 'final.' It describes the type of final; specifically, it is the final match or event of the championship.
Meistrivõistluste finaal toimub nädalavahetusel.
The championship final will take place over the weekend.
Here, 'meistrivõistlustel' is in the adessive case, which is used to denote location or context, indicating that the action took place at or during the championships.
Eesti sai palju medaleid rahvusvahelistel meistrivõistlustel.
Estonia won many medals at the international championships.
In this case, 'meistrivõistlusteks' is in the translative case, expressing the outcome or target for which preparation is directed, namely, the championships.