What does the term "metalanguage" refer to?

The term "metalanguage" refers to a language that is used to describe, define, or analyze another language. In this context, metalanguage is critical for various fields, including linguistics, programming languages, and systems for specifying the syntax and semantics of programming constructs.

When it comes to programming and web development, metalanguages play a significant role in creating languages that are tailored for specific tasks. For instance, languages like HTML and CSS can be seen as being defined through a metalanguage that describes how these languages should behave and be structured. Because metalanguage is about the creation and analysis of other languages, it serves as a foundational tool for developers and language designers.

The other options describe different types of languages but do not capture the broader function of a metalanguage in the context of language development and definition. Understanding metalanguage is essential for effectively engaging in tasks that involve language creation and analysis in various disciplines, including web development.