There are a variety of synonyms for the abbreviation "FSAT". One common synonym is "SAT", which stands for the Scholastic Assessment Test, a standardized test used in the college admissions process in the United States. Another possible synonym is "aptitude test", which refers to a test designed to measure an individual's natural abilities and potential for learning in certain areas. "College entrance exam" is another synonym that refers to any test that is used by colleges or universities as part of the admissions process. Finally, "standardized test" is a synonym for "FSAT" that refers to any test that has a predetermined format and scoring system to ensure a fair and consistent assessment of all test-takers.