Buddhism is a rich and complex philosophy that has evolved over thousands of years. Synonyms for Buddhist philosophy include Buddhist teachings, Buddhist doctrine, or Buddhist principles. These terms refer to the core beliefs and practices of Buddhism, including the Four Noble Truths, the Eightfold Path, and the concepts of karma and reincarnation. Other potential synonyms include Buddhist ethics, morality, or spirituality. However, it's worth noting that each of these terms has its own subtle nuances, and the best synonym for Buddhist philosophy may depend on the context in which it is being used.