participant

Compared meaning: someone taking part in an activity (noun).

比较义项：参加者，参与者（名词）。

• participant 本词

  A general, somewhat formal word for anyone taking part in an activity (a workshop, meeting, survey, discussion); not limited to games or sports.

  泛指参加某项活动的人（如工作坊、会议、调查、讨论），语气较正式，不限于比赛或运动。

  Each participant received a certificate after the workshop.

  每位参加者在工作坊结束后都获得了一张证书。

• player

  Specifically someone taking part in a game or sport, usually as a member of a team; sounds wrong for formal, non-game activities like meetings.

  特指参加比赛或运动的人，通常是队伍中的一员；用于会议等非比赛的正式活动会显得不恰当。

  Every player on the team practices twice a week.

  队里的每位选手每周训练两次。

Participant and player both mean someone taking part, but differ: participant is a general, formal word for anyone in an activity, like a workshop or meeting. Player specifically means someone in a game or sport, usually on a team. Not compared: player meaning a musician.

这两个词都指“参加某项活动的人”，但participant是较正式、通用的说法，可用于工作坊、会议、调查等任何活动；player专指比赛或运动中的“选手、队员”，不用于非游戏类的正式活动。这里不比较player的其他义项，如“乐器演奏者”（piano player）或“播放设备”（DVD player）。