set (something) down in black and white

set (something) down in black and white

To write something down as a means of making it official, legitimate, or binding. They promised to give me a raise when the project is complete, but I want them to set it down in black and white first. Make sure you have them set the deal in black and white before you agree to anything. That's a pretty generous offer—care to set it down in black and white?

See also: and, black, down, set, white

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