wit

Compared meaning: intelligence or mental ability (noun).

比较义项：智力、脑力（名词）。

• brain

  Informal, everyday word for a person's natural intelligence or cleverness; often paired with adjectives like sharp, good, or quick; refers to raw mental capacity itself.

  日常口语用词，指人天生的智力或聪明程度，常与 sharp、good、quick 等形容词搭配，用作指脑力本身的名词。

  You need a sharp brain to beat him at chess.

  你需要敏锐的头脑才能在国际象棋上赢他。

• mentality

  More formal; refers to someone's overall level of mental capacity or intellectual functioning, often used in assessments; its far more common everyday sense is 'attitude or way of thinking', not compared here.

  用法较正式，指一个人整体的心智能力或智力水平，常用于测评语境；注意 mentality 更常见的日常意思是"心态、思维方式"，本卡不涉及那个意思。

  The report described his mentality as well above average for his age.

  报告将他的心智水平描述为远超同龄人的平均水平。

• wit 本词

  Refers specifically to quickness of mind in conversation, especially the ability to think of clever or funny things to say; not general intelligence, and often collocates with quick, sharp, dry.

  专指交谈中思维敏捷、能说出机智或有趣话语的能力，不是泛指智力高低，常与 quick、sharp、dry 搭配。

  Her quick wit kept the whole table laughing all evening.

  她机智的反应让全桌人笑了一整晚。

All three can mean intelligence, but usage differs. Brain is informal, for natural cleverness. Mentality here means mental capacity, used in assessments; its common meaning is 'attitude or way of thinking', not compared here. Wit means quickness of mind, especially clever remarks, not general intelligence.

这三个词都可以译成"智力"，但实际用法差别很大：brain 是日常口语中指一个人天生的脑力或聪明程度的说法；mentality 在这里指心智能力或智力水平，用法较正式，多见于测评或心理学语境，它更常见的意思其实是"心态、思维方式"（例如 victim mentality"受害者心态"），这个意思本卡不作比较；wit 专指说话机智、反应敏捷、会讲俏皮话的能力，与幽默感关系密切，而不是泛指智力高低。