Breaking on is a term used to describe events where there is a sudden or unexpected change. Synonyms for breaking on include breaking out, erupting, occurring suddenly, happening unexpectedly, and coming to light. Other synonyms include unfolding, developing, and revealing. Breaking on can also be synonymous with breaking through, breaking free, and breaking forth. All of these words convey the idea of something changing or breaking apart in a way that affects the situation at hand. Whether it's a news story breaking on the radio or a sudden weather event breaking on the horizon, these synonyms help communicate the urgency and impact of unexpected changes.