The price-earnings ratio (P/E ratio) is a financial metric used to evaluate a company's stock. It is calculated by dividing the current stock price by the company's earnings per share (EPS). However, there are several synonyms for the P/E ratio, including "earnings multiple," "earnings yield," and "price-to-earnings multiple." These terms describe the same fundamental concept of valuing a stock based on its earnings. Other related financial terms include the "price-to-book ratio," which compares a company's market value to its book value, and the "dividend yield," which measures the percentage return on dividend payments relative to a stock's price. Understanding these financial terms can help investors make informed decisions about buying and selling stocks.