What part of speech is laughing?

"Laughing" can be a few different parts of speech, depending on how it's used in a sentence:

* Verb: This is the most common use. Example: "The children were laughing at the silly joke."

* Gerund: When used as a noun, often as the subject of a sentence. Example: "Laughing is the best medicine."

* Adjective: Describing something that is funny or likely to make someone laugh. Example: "He told a laughing story."

Let me know if you'd like examples of how "laughing" is used in a sentence!