There are a multitude of synonyms for the phrase "was proud". Some options include "felt accomplished," "was delighted," "experienced a sense of achievement," "had a strong sense of satisfaction," "glowed with pride," "was elated," "basked in the glory," "felt a sense of fulfillment," "swelled with pride," and "took immense pride in." Each of these phrases conveys a similar feeling of satisfaction and pride, but with slightly different connotations. Whether you are describing your own accomplishments or someone else's, using a variety of synonyms can help enhance your writing and fully capture the emotion behind the statement.