Here's why:
* Noun: "Features" is the noun in this phrase, representing the specific characteristics of a text.
* Adjective: "Text" modifies the noun "features" by specifying what kind of features we're talking about.
Therefore, "text features" is a noun phrase that functions as a subject, object, or other noun-like element in a sentence. For example:
* Text features can help readers understand the main ideas.
* The author used a variety of text features in the article.