When it comes to expressing an opinion or judgment on a particular matter, there are a multitude of synonyms for the phrase "pronounce on". Some of the options include "opine on", "render a decision", "pass judgment on", "weigh in on", "give one's verdict", "issue a ruling", and "declare on". These phrases all convey the same general idea of making a statement or decision about a specific topic. So whether you use "pronounce on" or one of its many alternatives, the important thing is to communicate your thoughts clearly and effectively.