Related Clues:
- Part of UPC
- Word with bar or color
- Up to ___
- Word preceding various colors
- Medium for secret messages
- See 46 Down
- Disguised language
- Morse creation
- ''Bar'' or ''airport'' follower
- What a programmer writes
- When it's cracked, it's broken
- Encipher
- It may be broken
- Collection of laws
- Camouflaged communication