It's a bit of a tricky one, as it's not the most common way to pluralize verbs. We usually use the "-s" ending for the third-person singular present tense (e.g., "she describes"). However, in some cases, "describes" can function as a plural, particularly when referring to multiple descriptions.
For example:
* "The book contains many describes of the city."
* "The website provides several describes of the product."
While it's not the most common usage, it's grammatically correct in certain contexts.