‘proud’ is an adjective used to describe or modify a noun or pronoun. As an adjective, ‘proud’ typically means to be full of or inspired by feelings of admiration, pleasure, or satisfaction due to one's own, or another person's, accomplishments or qualities.
1. She was very proud of her accomplishment.
2. They were proud parents that day.
3. He had a proud walk as he walked across the stage to get his diploma.
the word 'proud' is often misused as a verb, so it is important to remember that 'proud' is an adjective.