The phrase "happy ending" often refers to a satisfying conclusion to a story or situation. However, there are many other synonyms for this phrase that can convey a similar sentiment. Some popular alternatives include "fairy-tale ending," "feel-good conclusion," "perfect resolution," "satisfying denouement," and "rosy outcome." Additionally, phrases such as "happily ever after," "joyful finale," and "perfect ending" can also be used to describe a positive conclusion. Ultimately, the choice of phrase will depend on the context and tone of the situation, but all of these options can convey a sense of happiness and positivity.