The act of saying, "I have sinned", which is an admission, or a confession, of being guilty of doing something that is wrong!

During a period of British hegemony, or political control, in India and Pakistan; there was some sort of uprising in the province of "Sind" that resulted in a military response by British forces.

When order was restored, the British general cabled the home office with just one word: "Peccavi"!

He apparently had no doubt that the message would be perfectly clear; that is, "I have sinned" or "I have made a serious mistake."