A time when there's no electricity, so everything is dark.
The blackout made it hard to see anything in the room.
停電で部屋の中で何も見ることが困難だった。
When the government or police don't let the public know about something.
During the crisis, there was a blackout on the news.
危機の際にはニュースにブラックアウトがあった。
A time during war when lights are turned off at night so enemies can't see.
During the war, there were blackouts at night to hide from the enemy.
戦時中には夜間にかけて敵から身を隠すための停電があった。
A cover for windows to block light from coming in or going out.
We put up a blackout curtain to darken the room.
部屋を暗くするために遮光カーテンを掛けた。
A short time when someone can't remember anything because they lost consciousness.
After the accident, she had a blackout and didn't know what happened.
事故の後、彼女は意識を失って何が起こったのかを知らなかった。