confessio/kənˈfɛsi.əʊ/EtymologyFrom Latin cōnfessiō. Doublet of confession.confessio means A confession; a defense of one's faith, or a confession of guilt. Lexicurio rates it Rare gem — a strength score of 84 out of 100.nounA confession; a defense of one's faith, or a confession of guilt.