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Definitions

black out

VERB
obliterate or suppress
Synonyms
STRONGEST
cross out cut off darken erase extinguish faint pass out
STRONG
delete
WEAK
batten conceal cover cover up eclipse eradicate go out like a light hold back keel over make dark obfuscate quash rub out shade smother squash squelch stifle suppress swoon zonk out
Antonyms
WEAK
add pencil in resuscitate revive uncover
VERB
faint
Synonyms
STRONGEST
lose consciousness pass out
WEAK
collapse crap out draw a blank go out like a light slip into coma swoon zone out
Antonyms
WEAK
add pencil in resuscitate revive uncover

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“They can’t black out the whole country,” Kolisnyk said.

From The Wall Street Journal • Dec. 24, 2025

I had my assistant Helen Ho black out the room, and we used these fun LED light wands that resemble lightsabers to give him a colorful edge light.

From Los Angeles Times • Dec. 23, 2024

Not because I black out and instantly transform into an immature child anytime a person starts talking about feces, but apples.

From Salon • Apr. 11, 2024

"The acoustics were weird because it was designed as a church so there was a slight acoustic delay. It was so big and there was no black out so we were performing in broad daylight."

From BBC • Feb. 19, 2024

Dizzy, fearing that I would black out, I was frantic to reach the South Summit, where my third bottle was waiting.

From "Into Thin Air" by Jon Krakauer