Could someone explain the difference between attendant and attender?
To keep using French, attendant would mean waiting and attendre meaning to wait.
By the way, I have never heard/read them.
n.1. One who attends or waits on another.
2. One who is present.
3. An accompanying thing or circumstance; a concomitant.
adj.1. Being present: ships and attendant sailors.
2. Accompanying or following as a result: attendant circumstances.
In the US, if you want to refer to someone who is present at a meeting, conference, etc., you use attendee almost always. Some people (a very few!) do use attender. No one would use attendant for that purpose.
A meeting was held on June 19. Attendees included representatives from the...