Here are some examples:
* The road is wide. (Describing the road)
* She has a wide smile. (Describing the smile)
* The river is wide and deep. (Describing the river)
It can sometimes function as an adverb, too:
* The door swung wide open. (Describing how the door opened)
While it's not a noun in standard English, you might come across "the wide" in specific contexts, like:
* "The wide" might be used to refer to a vast or expansive area, like "the wide open spaces."
* "The wide" could also be used in a metaphorical sense, referring to a broad range of possibilities or experiences.
However, these uses are less common and might be considered poetic or informal.