There are several synonyms for the phrase "change opinion". Some of the popular ones are alter one's viewpoint, revise one's belief, modify one's judgment, transform one's attitude, and shift one's perspective. These expressions can be used interchangeably to convey the same meaning of altering one's mindset or belief system. The ability to change one's opinion is vital as it allows individuals to grow and learn from new experiences and insights. It is always crucial to remain open-minded and receptive to new ideas to broaden one's horizons. The synonyms for "change opinion" can help to vary one's language and communicate effectively in various circumstances.