How do you use "Black out" in a sentence?

I blacked out and fell. She blacks out if she stands up too fast. Nearly blacked out in the heat.

Black out

Q: What does "Black out" mean?

To faint or lose consciousness briefly. 'Blacking out' means losing consciousness—vision going black. Can be from standing up too fast, overheating, alcohol, or medical conditions. 'Had a blackout' is concerning; 'nearly blacked out' less so.

Slang Term BritishAmericanAustralian ★★★★★ Very Common Casual

Practice this with flashcards, quizzes & audio on WordLoci →

Meaning: To faint or lose consciousness briefly.

短暂晕厥、失去意识。

Desmayarse o perder el conocimiento brevemente.

一時的に気を失うこと、失神すること。

일시적으로 의식을 잃다, 기절하다.

'Blacking out' means losing consciousness—vision going black. Can be from standing up too fast, overheating, alcohol, or medical conditions. 'Had a blackout' is concerning; 'nearly blacked out' less so.

「blacking out」意思是失去意识——眼前发黑。可能是因为站起来太快、中暑、喝酒或身体疾病。「Had a blackout」比较让人担心；「nearly blacked out」程度较轻。

«Blacking out» significa perder el conocimiento, que se te nuble la vista. Puede ocurrir al levantarse demasiado rápido, por calor excesivo, por alcohol o por problemas médicos. «Had a blackout» resulta preocupante; «nearly blacked out» menos.

「blacking out」は意識を失うこと——視界が暗くなる。急に立ち上がった時、暑さ、飲酒、医学的な原因で起こりうる。「Had a blackout」は心配になる表現で、「nearly blacked out」はそこまでではない。

'Blacking out'은 의식을 잃는 것, 즉 눈앞이 캄캄해지는 것을 뜻합니다. 갑자기 일어서거나, 더위, 음주, 또는 건강 상태로 인해 발생할 수 있습니다. 'Had a blackout'은 심각한 상황을, 'nearly blacked out'은 비교적 가벼운 상황을 나타냅니다.

Examples

I blacked out and fell.
我晕过去摔倒了
Me desmayé y me caí
「気を失って倒れた」
의식을 잃고 쓰러졌어.
She blacks out if she stands up too fast.
她站起来太快就会晕倒
Se desmaya si se levanta demasiado rápido
「彼女は急に立ち上がると気を失う」
그녀는 갑자기 일어서면 기절해.
Nearly blacked out in the heat.
热得差点晕过去
Casi me desmayo con el calor
「暑さで気を失いかけた」
더위에 기절할 뻔했어.

Pronunciation

/blæk aʊt/

Usage Guide

Context: fainting, consciousness, medical

Tone: descriptive, concerning

✓ Do Say

Blacked out
晕过去了
se desmayó
気を失った
기절했어
Had a blackout
晕厥了
tuvo un desmayo
失神した
실신했어
Nearly blacked out
差点晕过去
casi se desmaya
気を失いかけた
기절할 뻔했어

✗ Don't Say

Can also mean alcohol-induced memory loss—context matters
也可以指因饮酒导致的失忆——要看上下文
También puede referirse a pérdida de memoria por alcohol; el contexto importa
アルコールによる記憶喪失の意味もある——文脈が重要
음주로 인한 기억 상실을 뜻하기도 함—문맥에 따라 의미가 달라짐

Common Mistakes

Different from a power blackout

Origin & History

From vision going black as consciousness fades. The same term applies to power cuts (electricity blacking out). Medical usage for fainting or syncope.

Etymology: Black + out (vision going dark)

First recorded: 20th century for medical usage

Cultural Context

Era: 20th century

Generation: All ages

Social background: Universal

Pop culture: Medical dramas

Regional notes: Universal English.

Variations

Black outBlackoutBlacked out