Pronounced “glos-uh-LAY-lee-uh.” A form of speaking in tongues. Mentioned as a practice in the New Testament, and a hallmark of contemporary Pentecostal and some charismatic Christians. It is most commonly viewed as a private, heavenly language given by the Holy Spirit to communicate with God. Xenoglossia, also called zenolalia, is another form of speaking in tongues; it involves uttering a foreign language previously unknown to the speaker. Some conservative Protestant groups believe that the gift of tongues ceased after the first century and that current practices are a spiritual counterfeit.