english
1
general::
see BLACK AND WHITE, def. 3.
American Heritage Idioms
2
general::
Phrase(s): *in black and white Fig. [of an agreement, contract, or statement] official, in writing or printing. (*Typically: be ~; get something ~.) • I have it in black and white that I’m entitled to three weeks of vacation each year.
McGrawhill's American Idioms And Phrasal Verbs