inform

Synonyms: acquaint advise apprise betray blab brief caution clue edify educate endow endue enlighten familiarize fill in forewarn give a pointer give a tip give away give two cents illuminate inspire instruct invest leak let in on let know level make conversant with notify post relate send word show the ropes snitch squeal tattle teach tell tell on tip tout update warn wise

Antonyms: conceal hide secret