v. i. to experience a temporary loss of consciousness, memory, or vision. [ PJC ]
v. t. 1. to cause to become black, such as a stage, a computer screen, or a city. [ PJC ]
2. to impose a blackout on (news or a sports event). [ PJC ]
3. to make (a written text) illegible by applying a black ink over it; to blot out. [ PJC ]
4. to suppress (a memory). [ PJC ]