Longshanks is a nickname given to King Edward I of England due to his height and long legs. However, there are many synonyms that could be used in place of this nickname. For example, one could refer to him as "Giant legs," "Tall man," "Leggy monarch," "Stilts ruler," or "Long-limbed king." These synonyms highlight his height and physical appearance while still maintaining the essence of the original nickname. It is important to note that these nicknames are not meant to be derogatory but rather used in a playful or respectful manner.