Do illiterate people know what language is and it means?

Illiterate people may have a limited understanding of the concept of language and its meanings. While they may not be able to read or write, they can still grasp the basic idea that language is a way of communicating and expressing oneself. Illiterate individuals often have a strong grasp of their native language, even though they may not be able to read or write it. They can understand and use the words in their language, as well as the basic rules of grammar and syntax. However, they may not be aware of the more complex aspects of language, such as the use of figures of speech or the subtle differences between words with similar meanings. Overall, illiterate people may have a basic understanding of what language is and its purpose, but their knowledge may be limited compared to literate individuals.