What part of speech is the word order?

The word "order" in the phrase "word order" can be considered a noun.

Here's why:

* It refers to a specific thing: In this context, "order" refers to the arrangement of words in a sentence or phrase.

* It can be modified: You can say "the natural order of words" or "the specific word order in a poem".

However, it's important to note that the phrase "word order" itself acts as a noun phrase, functioning as a single unit representing the concept of word arrangement.