This is the 423rd most frequent Estonian word.
festivali
The Estonian word "festivali" means "festival" in English.
In this case, 'festivali' is in singular genitive form, specifying possession relative to the tickets.
Festivali piletid müüdi välja rekordilise kiirusega.
Tickets for the festival were sold out at record speed.
Here, the word 'festivalil' is in singular adessive form, indicating the location where the action took place.
Käisime eile muusikafestivalil lauljaid kuulamas.
We went to a music festival yesterday to listen to singers.
In this sentence, the word 'festivali' is in singular nominative form, referring to a single festival.