This is the 7608th most frequent Polish word.
leagues
The word "leagues" is not Polish; in English, it refers to units of distance or associations/groups.
In this sentence, 'ligach' refers to organized divisions or groups for competitions in sports and games.
Ta drużyna gra w różnych ligach sportowych.
This team plays in various sports leagues.
Here 'ligach' metaphorically describes underwater realms, inspired by usage in literature or poetic language.
Ta książka jest o przygodach w podmorskich ligach.
This book is about adventures in underwater leagues.
In this case, 'ligami' is used figuratively to denote groups or levels of progress similar to competitive groups or sectors.