Related Clues:

• It means ''height''
• An MGM M
• D.C. line
• Phobia opener
• Underground system
• Studio, familiarly
• Capital carrier
• It may have a red line
• DC subway
• Paris transit
• Bat starter
• Paris subway system
• Prefix with ''phobia'' or 1-Across
• Prefix meaning ''height''
• DC's subway