Betray
Betray verb - To be unfaithful or disloyal to.
Usage example: childhood friends of movie stars often betray them by telling their secrets to the supermarket tabloids
Inform on is a synonym for betray in deliver topic. In some cases you can use "Inform on" instead a verb "Betray", when it comes to topics like inform against, be disloyal.
Inform on
Mutual synonyms
Cite this Source
Inform on and Betray. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/betray/inform_on
Betray & Inform on. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/betray/inform_on>.
Inform on or Betray. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/betray/inform_on.
Google Ngram Viewer shows how "betray" and "inform on" have occurred on timeline