The phrase "appeared on stage" can be interchanged with different synonyms depending on the context and the tone of the text. These synonyms include "performed", "embarked on", "took the stage", "made an entrance", "showed up", "debuted", "entered the limelight", "stepped forward", "took center stage", and "presented". These phrases can make the text more interesting and varied, depending on which synonym to use. Using synonyms can also avoid repetition of the same phrase, which can make the article tedious to read. Ultimately, the choice of which synonym to use depends on the writer's preference and the desired effect of the text.