Question: is yrn the same as yfwd?
Answer: A "yarn forward" is more commonly the British term, while a "yarn over" is the preferred American term. Pattern writers will shorthand a yarn forward in a variety of ways, some ways are more descriptive than others: "YF," "YFwd," "YFON (yarn forward over needle)," or "YFRN (yarn forward 'round needle)."