someone who has been given a letter (= a prize in the shape of the first letter of the name of a hig

中文解释

（校内）优秀运动员（其奖励为可佩戴在校服上的学校首字母徽章） He was a sports letterman in high school. 他在高中时曾获得校内优秀运动员的荣誉。