When do you capitalize the word mandarin when referring to language example She is fluent in both English and mandarin?

You should capitalize "Mandarin" when referring to the language.

Here's why:

* Proper nouns are capitalized: "Mandarin" is the name of a specific language, making it a proper noun.

* Specificity is important: Capitalizing "Mandarin" distinguishes it from the general term "mandarin," which can refer to a type of official or high-ranking person.

Correct: She is fluent in both English and Mandarin.

Incorrect: She is fluent in both English and mandarin.