Related Clues:

• "Un-PC" was added to it in 2014
• ''The Meaning of Everything'' subject: Abbr
• Lexical ref
• Ref. shelf filler
• Eng. dictionary
• Famed English dictionary, abbr
• Huge ref. set
• Ref. section staple
• Time magazine's 'scholarly Everest,' for short
• Ref. that recently added 'locavore' and 'phablet'
• British / lexicon, / in brief
• Brit. reference that recently added the word 'phablet'
• Big U.K. lexicon
• Noted ref. work
• Subj. of 'The Professor and the Madman'