Meaning of “inform” - Learner’s Dictionary

inform

verb [ T ] uk us /ɪnˈfɔːm/
TELL

B1 to tell someone about something:

If he calls me again, I shall inform the police.
[ + (that) ] He informed us that we would have to leave.
GIVE INFORMATION

B1 to give someone information about something:

[ often passive ] Patients should be informed about the risks.
He keeps his parents informed of his whereabouts.

(Definition of “inform” from the Cambridge Learner’s Dictionary © Cambridge University Press)