1. 語言 (yǔyán) - This is the most common way to spell "language" in Chinese. It is used for general contexts, such as talking about different languages or the study of languages.
2. 言語 (yǔyán) - This is a less common spelling of "language" in Chinese. It is used in specific contexts, such as when referring to the language of a particular group of people or when discussing the origins of language.
Both spellings are pronounced the same way, but the first spelling (語言) is more commonly used.