Synonyms for inform

verb

1. To give information

   apprise, notify, acquaint, familiarize; see notify 1, tell 1.

2. To give incriminating information; often used with ""on''

   denounce, betray, implicate, report on, tattle, name names, tell tales, tell on*, snitch*, squeal*, rat*, talk*, blab*, sell out*, sell down the river*, blow the whistle*, put the finger on*, finger*, spill the beans*, sing*, squawk*, fink*, stool*, drop a dime*. See syn. study at notify.notify.