Related Clues:

• Big ref. work
• Classic work originally in 10 vols
• It ends with 'zyzzyva,' in brief
• "Mansplain" was added to it in Jan. 2018
• 'Mansplain' was added to it in Jan. 2018
• Work whose second edition contains 59 million wds
• Famed British ref
• Massive resource: Abbr
• Massive lang. reference
• Work containing more than 3.5 million citations, for short
• Its first vol., A-Ant, was published in 1884
• Accompanier of a letter inside an env
• Classic work whose 'shorter' version comes in two vols
• Bus. letter insert
• A heart symbol, meaning 'love,' was its first graphical entry, for short