* Adjective: This is the most common usage, describing something that is liked or enjoyed by many people.
* Example: "The new restaurant is very popular."
* Noun: This is less common, but it can be used to refer to people who are well-liked or famous.
* Example: "The singer is a popular with the younger generation."
* Adverb: This is even less common, but it can be used to mean "in a popular manner".
* Example: "The candidate campaigned popularly in the city."
Let me know if you have a specific sentence in mind, and I can tell you the part of speech of "popular" in that context!