"Fellow attendees" refers to people who are present at the same event or gathering as you. They are the individuals who are also participating or audience members in the same event that you are attending. Full definition
• Our online conference community, which will allow you to remain in communication with fellow attendees for months after the conference concludes. (character.org)
Meet with over 120 CEOs of leading digital health companies and learn from fellow attendees in breakout sessions tailored to your business. (digitalhealthceosummit.com)
Everywhere we went we talked school breakfast with fellow attendees about what was happening with breakfast in their schools. (beyondbreakfast.org)