kíló

Külö is a proper noun that appears in a limited number of linguistic and fictional contexts. In English-language sources, there is no single, widely accepted definition of the term, and it is not listed in major dictionaries.

Etymology and form: The spelling uses diacritics common to several languages that mark vowel quality, such as ü and ö. Because there is no consensus on origin, the etymology of külö is unclear and may differ with usage or author.

Usage: In speculative fiction and worldbuilding, külö is sometimes employed as the name of a place, a character, or an organization. In linguistic discussions, it may be used as an illustrative example of a coined or borrowed term that tests diacritic-friendly transliteration.

Geographic and cultural notes: As a nonstandard term, külö has no established geographic or cultural association and is not tied to a specific country or language.

See also: diacritics; loanword; toponyms; worldbuilding terms.