Related Clues:

• Part of many stars' names
• Pressure meas.
• Certain cross
• Trident-shaped letter
• Pitchfork-shaped Greek letter
• Brightest star in a constellation
• ESP and the like
• Sixth-sense phenomenon
• Letter before omega
• Greek leader?
• Top dog
• Leader of the pack
• Tire pressure unit
• Sigma trailer
• Omega's opposite