Related Clues:

• They're trident-shaped
• Penultimate letters
• Some Greek consonants
• Greek consonants
• P P P
• Pi followers
• Platonic P's
• Some Greek letters
• Pitchfork-shaped letters
• Some sisters
• Trident-shaped letters
• College sweater letters
• Greek R's
• They're pitchfork-shaped
• Greek letters shaped like pitchforks