noun /kənˈfɛʃən/
a) The open admittance of having done something (especially of something bad).
Without the real murderers confession, an innocent person will go to jail.
b) the disclosure of ones sins to a priest for absolution. Now termed the sacrament of reconciliation.
I went to confession and now I feel much better about what I had done.
See Also: confess
Wikipedia foundation.