Third-person singular simple present indicative form of tongue.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "tongues" in a sentence
"Speaking or praying in tongues is a common — some would say required — practice in Pentecostal and charismatic Christianity, the fastest-growing form of Christianity in the world."
"Speaking in tongues is amusing to normal people but I’d hardly call it comedy."
"Just put a dictionary in, run the chopper for 30 seconds and you too can enjoy speaking in tongues!"