This is the 6434th most frequent Polish word.
challenger
The Polish word "challenger" (borrowed from English) refers to a competitor or contender, especially one aiming to surpass or defeat an opponent in a challenge or competition.
Used as a noun to refer to an individual ready to compete.
Challenger był gotowy do podjęcia wyzwania.
The challenger was ready to take on the challenge.
Used as a proper noun referring to the name of a program.
Program Challenger wspiera młodzież w edukacji.
The Challenger program supports youth in education.
Used as a proper noun naming a specific model of car.