kielikielen
Kielikielen is not a widely attested or standard term in major Finnish dictionaries or mainstream linguistic literature. The form appears to be Finnish in origin: kieli means "language" or "tongue," and repeated or compounded elements in Finnish can be used playfully, emphatically, or to form neologisms. Grammatically, kielikielen could also represent a genitive or inflected form of a hypothetical compound kielikieli, yielding a literal reading along the lines of "of the language-language" or "language's language," which is unusual and open to interpretation.
Because it lacks an established definition, kielikielen may appear in creative contexts, such as poetry, informal
Readers encountering the term should consider the surrounding text or ask the author for clarification. If