from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A secondary or college student who has earned a letter in a particular activity, especially a varsity sport.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A college student who has attained a specified level of participation in a sporting or other activity, and is awarded a cloth “letter” to be affixed to an item of clothing.
Sorry, no etymologies found.