Clue: Introductory letters

Answer: ABCD

Length: 4

---

Similar Clues:

• Introductory Greek letters (ALPHAS with 6 letters)
• Introductory letters? (ABCD with 4 letters)
• London call letters (BBC with 3 letters)
• Address letters (URL with 3 letters)
• "Letters to a Young Contrarian" author Christopher (HITCHENS with 8 letters)
• Kiting letters (NSF with 3 letters)
• Pinafore's letters (HMS with 3 letters)
• Soviet letters (CCCP with 4 letters)
• Letters starting a ship's name (USS with 3 letters)
• Letters on many SNL alumni résumés (SCTV with 4 letters)