The crossword solution for the term PLATONIC P is RHO, which is a three-letter word. Plato was an ancient Greek philosopher who is widely considered to be one of the most influential thinkers in Western philosophy. He is known for his theory of Forms, which states that the physical world is an imperfect reflection of a perfect, ideal world. The term 'PLATONIC' is often used to describe relationships that are purely PLATONIC, meaning that they are based on friendship and mutual respect without any romantic or sexual feelings. The letter 'P' in PLATONIC P stands for Plato, and the letter 'RHO' is the Greek equivalent of the letter 'P'.