participant

/pɑrˈtɪsəpənt/
noun
  1. A person who takes part in an activity, event, or process.
    • Every participant in the race received a medal at the finish line.
    • She was an active participant in the community garden project.
    • The study required each participant to complete a survey every week.
Antonyms
adjective
  1. Taking part in something.
    • All participant students must bring their own art supplies.
    • The participant members of the committee voted on the new policy.
    • The participant countries agreed to reduce carbon emissions by 2030.
What does "participant" mean? | whatsthatwordmean | whatsthatwordmean