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Catholic Culture Podcasts
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Catholic Dictionary

Find accurate definitions of over 5,000 Catholic terms and phrases (including abbreviations). Based on Fr. John Hardon's Modern Catholic Dictionary, © Eternal Life. Used with permission.

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Any turning or changing from a state of sin to repentance, from a lax to a fervent way of life, from unbelief to faith, and from a non-Christian religion to Christianity. Since the Second Vatican Council the term is not used to describe a non-Catholic Christian becoming a Catholic. The preferred term is "entering into full communion with the Church." (Etym. Latin conversio, a turning, overturning, turning around; turning point; change.)

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