Meaning of “confession” - Learner’s Dictionary

confession

noun [ C, U ] uk us /kənˈfeʃən/
ADMIT YOU ARE GUILTY

B2 a statement in which you admit that you have done something wrong or illegal:

He has made a full confession to the police.
RELIGION

an occasion when someone tells a priest all the wrong things they have done:

to go to confession

(Definition of “confession” from the Cambridge Learner’s Dictionary © Cambridge University Press)