acquainting, advising, apprising, briefing, catching up, clearing, clueing (in)(or cluing (in)), enlightening, familiarizing, filling in, hipping, informing, instructing, telling, versing, wising (up)
advertising, alerting, notifyingannouncing (to), disclosing (to)assuring, certifying, convincing, reassuring, warrantingeducating, lecturing, schooling, teaching, tutoringdisabusing, disenchanting, disillusioning, undeceiving
letting (someone) know