* Adjective: This is the most common use of "proud." It describes a noun, expressing a feeling of satisfaction or pleasure about something.
* Example: "He was proud of his accomplishments."
* Verb: "Proud" can be used as a verb, meaning to feel pride or to take pride in something.
* Example: "She proudly displayed her artwork."
* Adverb: "Proudly" is the adverb form of "proud," modifying a verb or adjective.
* Example: "He stood proudly next to his son."
So, the specific part of speech of "proud" depends on its context in a sentence.