Related Clues:

• The end of the Greeks?
• Orion's capital
• Greek character in Rome, gangly
• Letter #26
• Luxury Swiss watch
• Arch-like letter
• Ohm symbol
• Come again without Cain for the last letter
• Frat 'O'
• Zipper opening?
• Tappan ___
• Alphabetic ending
• Last of 24 letters
• Piece of pizza?
• Mark left by Zorro