When writing or speaking, it's essential to have a good understanding of synonyms. They help you convey your message more accurately and in a more engaging manner. One of the most common phrases that are used in everyday communication is "is based on". However, to avoid repetition and add more variety to your writing, you can use different synonyms such as "is grounded in", "rests on", "derives from", "relies upon", or "founded upon". Each of these words has a slightly different nuance and can convey a different meaning, so it's important to choose the one that best suits your context. By incorporating synonyms into your vocabulary, you can add a whole new level of sophistication to your writing and impress your readers with your linguistic skills.