"jaun" means: , particularly those of the upper middle class in 18th-, 19th-, and early 20th-century Kolkata.. This is a fairly neutral word with no inherent risk attached. There is no real cause for parental concern; it is descriptive vocabulary rather than something dangerous. If your child uses it, context will usually make the meaning clear. A brief, curious question about where they heard it is generally enough to know whether to follow up.