* It's a misspelling. You might be thinking of "linguism," which refers to the use of language as a tool of power or dominance, often to the exclusion or marginalization of other languages or cultures.
* It's a specific term in a particular context. If you encountered this term in a specific book, article, or discussion, it might have a unique meaning within that context. Please provide more information about where you saw the term.
Without more context, it's difficult to define "lingualism" definitively.