attender

attender - English Dictionary

[ noun ]
■ a person who is present and participates in a meeting
e.g.)
・he was a regular attender at department meetings
→ attendant , attendee , meeter

[ noun ]
■ someone who waits on or tends to or attends to the needs of another
→ attendant , tender

[ noun ]
■ someone who listens attentively
→ auditor , hearer , listener