This is the 3434th most frequent Russian word.
призером
"Prizewinner" or "medalist."
The word 'призером' is used as a predicate, denoting someone who received a prize in a competition.
Он стал призером соревнований.
He became a prize-winner of the competition.
Here, 'призерами' is in the nominative plural, referring to individuals who earned prizes.
Все призеры получат награды завтра.
All prize-winners will receive their awards tomorrow.
In this example, 'призером' is used in the instrumental case, describing the subject's achieved status regarding the tournament.