UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈnəʊɔːl/US:USA pronunciation: respellingUSA pronunciation: respelling(nōôl′)

WordReference Random House Unabridged Dictionary of American English © 2020
know-all  (nōôl′),USA pronunciation n. [Informal.]
  1. Informal Termsa know-it-all.
  • 1880–85

Collins Concise English Dictionary © HarperCollins Publishers::
know-all n
  1. informal derogatory a person who pretends or appears to know a great deal
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