98221b18_Trainings_vs_Workshops__2
[0] class [1] - [2] 
A generic term, and one that is typically unhelpful. As you can imagine, both Workshops and Trainings get called "classes" on web sites and in promotional materials. Saying that your conference will be "offering classes" can mean many different things to many different people. Asking trainers if they wish to "run a class" at your conference is also sometimes a recipe for miscommunication. I have known conferences saying they feature "classes" when this has meant workshops. Other times this has meant training. Even at least once a conference referring to "classes" was attempting to convey that they offered a variety of speaking tracks with differing levels of advanced content.
Trainings vs Workshops
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