The phrase "be proud of" is commonly used to describe a feeling of satisfaction or pleasure in one's own achievements, qualities, or possessions. However, it can be useful to have a variety of synonyms to avoid repetition and add richness to our language. Some alternative options include "take pride in," "feel a sense of accomplishment," "take satisfaction in," "relish," "bask in," and "enjoy the fruits of one's labor." These phrases can emphasize the positive emotions associated with the feeling of pride, while also adding depth and nuance to our writing or speech.