'attender' definitions:

Definition of 'attender'

(from WordNet)
noun
Someone who listens attentively [syn: hearer, listener, auditor, attender]
noun
Someone who waits on or tends to or attends to the needs of another [syn: attendant, attender, tender]
noun
A person who is present and participates in a meeting; "he was a regular attender at department meetings"; "the gathering satisfied both organizers and attendees" [syn: attendant, attender, attendee, meeter]