This is the 15372nd most frequent Polish word.
sojuszu
"Sojuszu" means "alliance" in English.
The word 'sojuszu' is in the genitive case, translating to 'of the alliance,' describing the source of the advantage gained.
Dzięki sojuszu zdobyliśmy przewagę strategiczną.
Thanks to the alliance, we gained a strategic advantage.
Here, 'sojuszu' again appears in the genitive case, indicating possession or relation.
Historia tego sojuszu jest bardzo interesująca.
The history of this alliance is very interesting.
In this sentence, 'sojuszu' is used in the genitive case as a complement to the action of forming the alliance.