Know-it-all Soft redirect to Wiktionary Wikipedia does not have an article on "know-it-all", but its sister project Wiktionary does: Read the Wiktionary entry "know-it-all" You can also: Search for Know-it-all in Wikipedia to check for alternative titles or spellings. Start the Know-it-all article, using the Article Wizard if you wish, or add a request for it; but please remember that Wikipedia is not a dictionary.wiktionary:Special:Search/know-it-all