1) Acknowledgment of guilt 2) Admission of guilt 3) An admission of guilt 4) Error acknowledgment 5) Formal apology 6) How Cicero said sorry 7) Latin phrase 8) Words of guilt 
==Origin== The origin of the expression is from a prayer of confession of sinfulness used in the Mass of the Roman Catholic Church known as Confiteor (Latin for `I confess`), of which the first evidence dates from shortly before 1100AD. The phrase `mea culpa` appears in the prayer from the 16th century. The Ordinary Form of the Roman Rite text...
Mea culpa is Latin for By my own fault
[n] - an acknowledgment of your error or guilt
mea culpa My fault. Personal acknowledgment of one's fault or guilt. Units of mottoes and proverbs listed by groups: A to X.
I am responsible for the problem - acknowledgment of guilt or blame
noun an acknowledgment of your error or guilt