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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.

Badiucao goes further, noting that an open trial would spotlight the very works it is trying to black out.

From BBC • Apr. 19, 2026

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

From The Wall Street Journal • Dec. 24, 2025

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

As early as 2021, they began to black out documents in response to public-records requests, asserting they have a “legislative privilege” to keep a swath of their internal communications secret.

From Seattle Times • Mar. 1, 2024

Some channel began to close inside me and I knew I was about to black out.

From "A Separate Peace" by John Knowles