'mea culpa' definitions:

Definition of 'mea culpa'

noun

An acknowledgment of your error or guilt

Definition of 'mea culpa'

From: GCIDE

Peccavi \Pec*ca"vi\ [L.] I have sinned; -- used colloquially to express confession or acknowledgment of an offense; -- used rarely, superseded by the approximate equivalent mea culpa. --Aubrey. [1913 Webster +PJC]

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