confiteor

/kənˈfɪ.ti.ɔːr/
noun
  1. A prayer in the Christian (especially Catholic) liturgy that confesses sins to God and asks for forgiveness.
    • The congregation recited the Confiteor at the beginning of the Mass.
    • During the service, the Confiteor was spoken quietly by the people.
    • The priest led the Confiteor, and everyone said, 'I confess to Almighty God...'
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