HLN, which stands for Headline News, is a cable news network that is a sister channel of CNN. There are several synonyms that can be used for the acronym HLN. One possible synonym is breaking news, which refers to urgent and important news that has just happened. Another synonym that can be used is current events, which covers news stories that are happening right now. Additionally, real-time news is another synonym that can be used for HLN, as well as news updates which are crucial for people who want to stay informed and up-to-date with what is happening in the world. In short, HLN is all about keeping people informed and aware of the most important news and events happening around the globe.