An athlete who is awarded a letter (or letters in multiple sports) is said to have "lettered" when they receive their letter. In recent years, some schools have expanded the concept of letterman beyond sports, providing letters for performance in performing arts, academics, or other school activities.

What does it mean to letter in high school?

When they obtain their certificate, an athlete who has been given a letter is also considered 'lettered'. Some schools even extended the idea of a letterman outside athletics in recent times. They recently began giving letters for results in performance arts, education, or even other school events.

What does lettered in mean?

2 : inscribed with or as if with letters.