bend (something flexible and relatively flat) over on itself so that one part of it covers another

Sam folded up the map

cover or wrap something in (a soft or flexible material)

a bag was folded around the book

(of an enterprise or organization) cease trading or operating as a result of financial problems

the club folded earlier this year

(of a polypeptide or polynucleotide chain) adopt a specific three-dimensional structure

a form or shape produced by the gentle draping of a loose, full garment or piece of cloth

the fabric fell in soft folds

a slight hill or hollow in the ground

the house lay in a fold of the hills

a line or crease produced in paper or cloth as the result of folding it

a pen or enclosure in a field where livestock, especially sheep, can be kept

shut (livestock) in a fold