* A misspelling: Perhaps it's a typo for "lexia" which could refer to "lexeme," a linguistic term for a basic unit of meaning in a language.
* A foreign word: It might be a word from another language. If you provide the context or language it came from, I might be able to help you understand its meaning.
* A specialized term: It could be a technical term in a specific field, like computer science or medicine.
To get a better understanding of what "lexia" means, please provide more context or information.