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know-all

 

Definitions from WordNet

Noun know-all has 1 sense
  1. know-it-all, know-all - someone who thinks he knows everything and refuses to accept advice or information from others
    --1 is a kind of egotist, egoist, swellhead

Definitions from the Web

Term: Know-All

Definition:

A know-all is a person who claims to know everything or acts as if they possess extensive knowledge.

Part of Speech:

Noun

Sense 1:

Definition: A person who is excessively knowledgeable or deeply involved in a particular subject.

Example sentence: John is a know-all when it comes to history; he can tell you intricate details about any event.

Sense 2:

Definition: A person who behaves arrogantly and constantly interrupts others with their supposed knowledge.

Example sentence: Elizabeth can be annoying at times because she always acts like a know-all in every conversation.

Sense 3:

Definition: A fictional character or stereotype who is portrayed as having an answer to every question and being highly knowledgeable.

Example sentence: Sherlock Holmes is often depicted as a know-all detective who can solve any mystery.

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