An attendee; one who attends a course, meeting, school, etc.
1900, James Wideman Lee, Naphtali Luccock, and James Main Dixon, The Illustrated History of Methodism, page 345, The Methodist Magazine Publishing Co.
And she continued her infamous trade of procuress, while a zealous and regular attender of the Tabernacle at Tottenham-Court!
An attendant; one who attends to someone or something.