This is the 1989th most frequent Turkish word.
rakiplerini
"Rakiplerini" means "their rivals" or "their competitors" in English.
The word 'rakiplerini' here refers to 'their rivals' in a possessive and accusative form, showing the team challenging the rivals.
Futbol takımı bu sezon rakiplerini zorladı.
The soccer team challenged their rivals this season.
In this sentence, 'rakiplerini' refers to 'its competitors,' and it's again in a possessive and accusative case, emphasizing the object of the strategy.
Şirket, rakiplerini yenmek için yeni bir strateji geliştirdi.
The company developed a new strategy to defeat its competitors.
Here, 'rakiplerini' means 'their rivals' and is used as the target of the poet's impressive works, in possessive accusative form.