This is the 489th most frequent Croatian word.
ligi
"Ligi" is the dative or locative singular form of "liga," meaning "league."
Here, 'ligi' is in the dative or locative case, referring to participation or location within a league.
Igrali smo u ligi prošle godine.
We played in a league last year.
In this sentence, 'ligi' is in the dative case, used after the verb 'pridružiti se' (to join) to indicate the entity one joins.
Pridružili smo se ligi novih igrača.
We joined the league of new players.
In this context, 'ligi' is in the locative case, used after the preposition 'o' to indicate the topic of discussion.