the.com/symposium

means A formal meeting where experts give talks and papers on a particular subject, often followed by discussion.

from From Greek 'symposion,' literally 'drinking together' (syn- 'together' + posis 'drinking'). In ancient Greece, a symposium was a genuine party — wine, music, conversation, and philosophical debate reclining on couches. The drinking eventually evaporated out of the word, but the talking never stopped; by the time English borrowed it, the term had sobered up into a gathering for intellectual exchange, and later, the stuffier ritual of academic papers and panel discussions.