idioglossia

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US/ˌɪdioʊˈɡlɑsiə/US/ˌɪdiəˈɡlɑsiə/

noun

An invented form of dialect, language, or speech used by children, typically twins, and intelligible only to its speakers.

Scrabble 13

Meanings

nounidioglossia (countable and uncountable, plural idioglossias)

plural idioglossias

  1. countableuncountablehuman sciencesAn invented form of dialect, language, or speech used by children, typically twins, and intelligible only to its speakers.

    Synonyms: cryptophasia, idiolalia

Synonyms & antonyms

nounAn invented form of dialect, language, or speech used by children, typically twins, and intelligible only to its speakers.

Also see

Origin

  1. Proto-Indo-European*swé
  2. Proto-Indo-European*swéd-yo-s
  3. Proto-Hellenic*hwédios
  4. Ancient Greekῐ̓́δῐος (ĭ́dĭos)
  5. Englishidio-
  6. Englishidioglossia

From idio- + -glossia.

Full word history & related roots →
Cite this entry
APA

idioglossia. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/idioglossia

MLA

“idioglossia.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/idioglossia. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “idioglossia,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/idioglossia.

Source: idioglossia on Wiktionary, CC BY-SA 4.0.