98221b18_Trainings_vs_Workshops__2
[0] speaker [1] - [2] 
A person who is presenting a briefing/talk at a conference. Speakers are given free admission to the event and in almost all cases they also have expenses such as travel and lodging covered completely. Food, drinks, and other incidentals are sometimes, but certainly not always, covered by the event. The industry standard is for one meal with drinks to be paid for by the event organizers the night before the event starts.
Trainings vs Workshops
2