attendee
n. countable B2 Upper Intermediate US //əˈtɛnˈdi// UK //ɐtˈɛndiː// at·tendee
n. a person who goes to an event, meeting, or show. It is a more formal way to say 'person at the event'.
n. a person who attends an event, meeting, or gathering. Often used in professional or formal contexts to describe participants in a conference or seminar.
The speaker thanked every attendee for coming to the meeting.
The organizers provided a name tag for every attendee to help them network with other professionals at the conference.
While the keynote address was designed for a general audience, the breakout sessions were tailored to the specific needs of each individual attendee based on their professional backgrounds.
From attend + -ee.