Definitions of blackout:
- noun: a momentary loss of consciousness
- noun: the failure of electric power for a general region
- noun: darkness resulting from the extinction of lights (as in a city invisible to enemy aircraft)
- noun: a suspension of radio or tv broadcasting
- noun: partial or total loss of memory
Example: "He has a total blackout for events of the evening"
Search for blackout at other dictionaries: OneLook, Oxford, American Heritage, Merriam-Webster, Wikipedia