The phrase "facts of life" refers to the basic information and knowledge that one needs to know to navigate through life. If you are looking for synonyms for this term, there are many other words and phrases that can express the same idea. Some examples include fundamental truths, life lessons, essential knowledge, basic principles, core values, and vital lessons. You can also use more specific terms depending on the context, such as survival skills, common sense, practical wisdom, or universal principles. Whatever synonym you choose, remember that understanding the "facts of life" is crucial to achieving success and happiness in all aspects of life.