The phrase "keep tabs on" means to monitor or keep track of something or someone. There are several synonyms for this phrase, including "keep an eye on," "watch closely," "track," "monitor," "observe," "follow up on," "check in on," and "keep watch over." These synonyms all express the same idea of keeping a close watch or maintaining awareness of something. It's important to stay up-to-date and informed about the things that matter most to us, and using synonyms for "keep tabs on" can help us do just that. Whether it's tracking a project or observing the behavior of a loved one, staying aware and vigilant is key to success and well-being.