Related Clues:

• College, colloquially
• The "M" in MSG
• College, in the U.K
• Prefix with "brow" or "cycle"
• Prefix with cycle or cellular
• College, in British slang
• Prefix related to mono-
• Like many old recordings
• Half a stereo?
• Prefix with form or brow
• Lead-in to rail
• College, to an Aussie
• ''Single'' prefix for rail
• Prefix for tone or chrome
• Prefix similar to 'mono'