Twelfth grade
United States
The twelfth grade is the twelfth school year after kindergarten. It is also the last year of compulsory secondary education, or "high school". Students often enter the grade as 16 and 17-year-olds and graduate as mostly 17 or 18-year-olds depending on their birthday. Twelfth graders are referred to as Seniors.
Twelfth grade-54