The phrase "is proud" is commonly used to express a sense of accomplishment, self-confidence, or admiration for someone or something. However, there are several synonyms that can be used to convey a similar meaning. Words such as 'pleased', 'satisfied', 'delighted', 'content', 'gratified', 'elated', 'fulfilled' and 'glad' can be used to describe the feeling of pride. Each word carries a unique connotation, so choosing the right synonym can help to add depth and nuance to your writing. Whether you are expressing personal achievements or describing someone else's accomplishments, choosing the right synonym will help to convey the desired tone and emotion.