This is the 3434th most frequent Russian word.
призером
"Prizewinner" or "medalist."
In this example, 'призером' is used in the instrumental case, describing the subject's achieved status regarding the tournament.
Я горжусь быть призером этого турнира.
I am proud to be a prize-winner of this tournament.
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.