To make the proper arrangement (in a thin material) by bending.
“If you fold the sheets, they'll fit more easily in the drawer.”
To become folded; to form folds.
“Cardboard doesn't fold very easily.”
noun
An act of folding.
“After two reraises in quick succession, John realised his best option was probably a fold.”
(newspapers) The division between the top and bottom halves of a broadsheet: headlines above the fold will be readable in a newsstand display; usually the fold.