When it comes to synonyms for the phrase "become known knowledge," there are several options available. One of the most common choices would be "dissemination of information," which refers to the act of spreading knowledge to others. Alternatively, "sharing of intelligence" could also be used, indicating that information is being passed along to others. "Broadcasting of insights" is another option, suggesting that unique or important knowledge is being made widely available. Some similar phrases might include "publicizing of awareness" or "propagation of cognizance." Ultimately, the best synonym will depend on the context in which it's being used and the precise meaning that the writer is trying to convey.