Clue: Twenty-vol. reference

Answer: OED

Length: 3

---

Similar Clues:

• Words on an initial reference volume (ATO with 3 letters)
• Reference volume (CASEBOOK with 8 letters)
• Big reference volume (TOME with 4 letters)
• Twenty-volume ref. for writers (OED with 3 letters)
• Reference volume from the UK (OED with 3 letters)
• Twenty-volume ref. work (OED with 3 letters)
• Reference volume, informally (ROGET with 5 letters)
• Volcano that erupted in 1902 (PELEE with 5 letters)
• "___-and-Twenty": Johnson (ONE with 3 letters)
• Eldest, to Voltaire (AINE with 4 letters)