the.com/presentation

means A formal act of showing or explaining something to an audience — information, a plan, or a product — laid out for others to see and judge.

from From Latin praesentare, 'to place before, to show,' built from prae- ('before') and sentare (a form related to esse, 'to be'). It entered English via Old French presentation, originally carrying the sense of 'bringing something into someone's presence' — including the old formal sense of presenting a gift, or presenting oneself at court. The slide-deck sense is a much later, much drier descendant of that same basic act: putting something in front of people and hoping they receive it well.