What part of speech is the word purchases?

The word "purchases" can be two parts of speech, depending on its context:

* Noun: When it refers to the things that have been bought, it's a noun.

* Example: "My recent purchases include a new laptop and a set of headphones."

* Verb: When it describes the act of buying something, it's a verb.

* Example: "She purchases groceries every week."

To determine which part of speech it is, consider the sentence and the role the word plays.