[black] Black is the darkest color and what you see in the absence of light.
to lose consciousness. ‘I completely blacked out after finishing off that keg of beer.’
black and white
clearly distinct options, opinions, or situations.
a negative image obtained from inappropriate actions. ‘The drunken hunter gave his sport a black eye when he stumbled and shot a member of the media.’
in black and white
in writing. ‘I agree to your terms, so let’s get it in black and white so we don’t have any misunderstandings later.’
in the black
earning more than you lose. ‘Thanks to the sudden increase in cosmetic surgeries, our clinic is in the black this month and can afford to pay our legal fees.’