The Clue
Ref. room offering (3 letter answer)
The Answer
OED
Tags
Notes
The answer OED is seen frequently, appearing about once every 150 puzzles.
Related Clues
Brit. lexicon
Brit. reference
Eng. lexicon
Etymologist's ref.
Library ref.
Orthographer's ref.
A ref. book
Ref. book
Ref. set
Ref. staple
Ref. work
Voluminous ref.
Wordsmith's ref.
20-vol. work
Brit. ref. work
Brit. reference work
Brit. word reference
British ref. book
British ref. for wordsmiths
Competitor of Chambers, for short
Word ref. started in 1857
Dict. published in England
Expensive ref. work
Large ref. book
Multivolume Brit. reference
Multivolume ref. work
Often-cited ref.
Philologists' work, for short
Some library vols.
U.K. wordsmith's ref.
Voluminous ref. set
20-vol. reference work
James Murray work: Abbr.
Lexicon with many citations: Abbr.
Noted publication of 1933, for short
"The Professor and the Madman" topic, for short
It may fill a lib. shelf
Its last word is "zyxt": Abbr.
Shak. is its most-quoted writer
Work started by London's Philological Soc.
Definition
OED as a noun:
1. (Oxford English Dictionary, O.E.D., OED) = an unabridged dictionary constructed on historical principles