Explain the meaning of each word (1–7): 5. contestants, opponents, participants

Перевод задания: Объясните значение каждого слова.

contestants — people who take part in a competition (участники конкурса или соревнования).

opponents — people who compete against each other or disagree with each other (соперники; противники).

participants — people who take part in an activity or event (участники).