When it comes to communicating a certain message, it is important to use a variety of words to express your intentions. The phrase "insist on" is commonly used to convey a sense of determination and persistence. However, there are numerous synonyms that can be used to communicate the same message. For instance, one could say "demand", "require", or "command" to convey the same level of intensity and urgency. Other synonyms include "assert", "emphasize", "urge", and "press". Each synonym offers a unique way of expressing your intent, allowing you to communicate more effectively with your audience. So, why not branch out and experiment with different synonyms for "insist on" today?