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The original was posted on /r/todayilearned by /u/thedubiousstylus on 2025-03-09 17:59:24+00:00.

Original Title: Today I learned of the voiceless labial–velar implosive, the rarest sound to appear in any language. The sound, described as pronouncing a k and p at the same time while sucking in air instead of pushing it out, is found only in the Central dialect of the Igbo language.