What does "inform on" mean?

To tell on someone; to act as an informant against.

What is a synonym for "inform on"?

Common synonyms include: accuse, allege, arraign, article, babble, be indiscreet.

verb

verb ·Uncommon ·Advanced level

Verb

1
To tell on someone; to act as an informant against.
"In 1983, one of his friends informed on him for reading a forbidden book, and he lost his teaching job."

"In 1983, one of his friends informed on him for reading a forbidden book, and he lost his teaching job."