1.
If you ~, you lose consciousness for a short time.
Samadov said that he felt so ill that he blacked out.
= pass out
PHRASAL VERB: V P
2.
If a place is blacked out, it is in darkness, usually because it has no electricity supply.
Large parts of the capital were blacked out after electricity pylons were blown up.
PHRASAL VERB: be V-ed P
3.
If a film or a piece of writing is blacked out, it is prevented from being broadcast or published, usually because it contains information which is secret or offensive.
TV pictures of the demonstration were blacked out.
= censor
PHRASAL VERB: usu passive, be V-ed P
4.
If you ~ a piece of writing, you colour over it in black so that it cannot be seen.
U.S. government specialists went through each page, blacking out any information a foreign intelligence expert could use...
= censor
PHRASAL VERB: V P n (not pron), also V n P
5.
If you ~ the memory of something, you try not to remember it because it upsets you.
I tried not to think about it. I blacked it out.
= blot out
PHRASAL VERB: V n P, also V P n (not pron)
see also blackout