white belt

Short definition from Wiktionary

Noun

1. 1
   The lowest rank; beginner level.
2. 2
   A student at the white belt level.
3. 3
   The belt worn by a student of white belt rank as a symbol of rank.
4. 4
   A region in which the majority of residents are white.
5. 5
   Used other than figuratively or idiomatically: see white, belt.