black out
phrasal verbblack out
- to become unconscious for a short time synonym faint
- The driver had probably blacked out at the wheel.
black something out
- to make a place dark by turning off lights, covering windows, etc.
- A power failure blacked out the city last night.
- a house with blacked out windows
- to prevent something such as a piece of writing or a television broadcast from being read or seen
- Some lines of the document have been blacked out for security reasons.