Question

My sister told on me when I didn't go to school.

Accepted Answer

To informhttps://en.wiktionary.org/wiki/inform on; to tattlehttps://en.wiktionary.org/wiki/tattle; to tell someone with authority that someone else has done something wrong; usually somewhat childish.

Sentence	My sister told on me when I didn't go to school.
Definition	To inform https://en.wiktionary.org/wiki/inform on; to tattle https://en.wiktionary.org/wiki/tattle ; to tell someone with authority that someone else has done something wrong; usually somewhat childish.

Sister Told I School Authority Wrong Childish