The term "brainiac" refers to a very intelligent person, often someone who excels academically or is highly knowledgeable. The structure is informal slang formed from "brain" with the suffix "-iac," implying a person strongly associated with intelligence. It is commonly used in everyday speech, sometimes neutrally and sometimes slightly teasingly, to describe someone who is exceptionally smart.

What does "brainiac" mean in intelligence slang?

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英語での「brainiac」の定義と意味

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