- 1. n. One who knows everything; hence, one who makes pretension to great knowledge; a wiseacre; -- usually ironical. Source: opted
- 2. n. someone who thinks they know everything and refuses to accept advice or information from others Source: wordnet
- 3. One who knows everything; hence, one who makes pretension to great knowledge; a wiseacre; -- usually ironical. [Colloq. or R.] Source: webster
- 4. One who knows everything; hence, one who makes pretension togreat knowledge; a wiseacre; -- usually ironical. [Colloq. or R.] Source: adambom
- 5. n someone who thinks he knows everything and refuses to accept advice or information from others Source: ecdict
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everythingknowshenceironicalknowledgepretensionwiseacreacceptadvicegreatinformationrefusessomeonethinksknowthey