This is the 16498th most frequent Polish word.
wieloboju
"Wieloboju" translates to "pentathlon" or "decathlon" depending on context, referring to a multi-event athletic competition.
This usage refers to a multi-disciplinary competition within athletics.
Oglądaliśmy zawody w wieloboju lekkoatletycznym.
We watched the competition in the athletic decathlon.
In this sentence, 'wieloboju' highlights the discipline in which the athlete is specialized.
Zawodnik specjalizujący się w wieloboju musi być wszechstronny.
An athlete specializing in the decathlon must be versatile.
Here, 'wieloboju' is used to describe the competition type being referred to.