Sioille

Sioille is a term found in speculative fiction and conlang communities. There is no single, widely accepted definition, and the meaning of sioille varies by work or author. In many fantasy settings, sioille is described as a crystalline or mineral substance that stores or channels energy, power, or magical forces. In some conlangs, the word functions as a class of phonemes or as a unit of grammatical resonance, used to illustrate sound correspondences or syntactic relationships.

Etymology and variants: The form sioille appears in several fan-made glossaries and wiki pages, often with minimal canonical etymology. Variants include sioillé, sioill, or different capitalizations. The term is typically presented as a loanword from a fictional language and is not generally tied to any real-world language.

Usage and reception: Because sioille is used in multiple, non-overlapping fictional contexts, there is little cross-work interoperability; each usage tends to be self-contained, with properties defined within its own setting. It is most prevalent in online communities, fan wikis, and collaborative world-building projects.

See also: Conlangs, fantasy minerals, energy crystals, fictional terminology.