A unique language or speech used by a person or a small group.

A private language that is not recognizable to others.

एक निजी भाषा जो दूसरों के लिए पहचानने योग्य नहीं है।

English Usage: Their idioglossia was so intricate that even their parents couldn't decipher it.

Hindi Usage: उनकी idioglossia इतनी जटिल थी कि यहां तक कि उनके माता-पिता भी इसे पहचान नहीं सके।