What does "Know-It-All" mean?

Someone who acts like they know everything. Person who thinks they're always right and corrects others.

How do you use "Know-It-All" in a sentence?

Don't be such a know-it-all. He's a real know-it-all.

Know-It-All

Slang Term BritishAmericanAustralian ★★★★★ Very Common Casual

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Meaning: Someone who acts like they know everything.

自以为什么都知道的人。

Alguien que actúa como si lo supiera todo.

何でも知っているふりをする人。

뭐든 다 아는 척하는 사람.

Person who thinks they're always right and corrects others.

总觉得自己是对的、喜欢纠正别人的人。

Persona que cree que siempre tiene razón y corrige a los demás.

いつも自分が正しいと思い、他人を訂正する人。

항상 자기가 맞다고 생각하고 남을 고쳐주려는 사람.

Examples

Don't be such a know-it-all.
别那么自以为是。
No seas tan sabelotodo.
そんなに知ったかぶりするなよ。
그렇게 아는 척 좀 하지 마.
He's a real know-it-all.
他真是个万事通。
Es un auténtico sabelotodo.
彼は本当に知ったかぶりだ。
그는 진짜 아는 척 대장이야.

Pronunciation

/ˈnəʊ ɪt ɔːl/

Usage Guide

Context: criticism

Tone: annoyed

✓ Do Say

Know-it-all
万事通
sabelotodo
知ったかぶり
아는 척쟁이

✗ Don't Say

About arrogant people
指自以为是的人
Se refiere a personas arrogantes
傲慢な人を指す
거만한 사람에 대해

Common Mistakes

British also say 'clever clogs'

Origin & History

Self-explanatory compound—someone who claims to know it all.

Cultural Context

Era: Traditional

Generation: All ages

Social background: Universal

Variations

Know-it-allKnow-all