Related Clues:

• Monument of lexicography, for short
• Oft-cited ref. book
• U.K. reference book
• It comes in many vols.
• Brit. reference bk.
• Definitive def. source
• Wordsmith's ref.
• Noted Brit lexicon
• UK lexicon
• Venerable lexicon: Abbr.
• Massive ref. work
• Major ref. work
• Ref. set
• UK reference book
• Venerable British ref. set