Due to its specificity, there is not a wide range of synonyms for the term "Big Bill Tilden." However, some alternate phrasings could include "William Tilden Jr.," "the great American tennis player," or "one of the most dominant tennis players of the 1920s." Tilden was known for his towering stature and imposing presence on the court, so descriptors such as "enormous" or "imposing" could also be appropriate. Tilden's legacy as a tennis legend is well-known, and he is often regarded as one of the most influential players of the early twentieth century. Regardless of the specific wording used, Tilden remains an important figure in the history of tennis.