To disclose or reveal.
To hear or receive such a confession of sins from.
To acknowledge faith in; to profess belief in.
To unburden (oneself) of sins to God or a priest, in order to receive absolution.
To admit to the truth, particularly in the context of sins or crimes committed.
To make one's début.
A person’s or thing’s first appearance before society or another audience; one’s “maiden voyage”.