what is a 9th grader called

In the United States, a 9th grader is typically called a "freshman". This term refers to someone in their first year of high school education. In other countries, such as India, 9th grade is the first year of high school. In the Philippines, 9th grade was formerly known as "third year" until it changed to 9th grade or "junior year". In Sweden, 9th grade is the last year of the upper stage of compulsory education.