If you fold something up, you make it into a smaller, neater shape by folding it, usually several times. She folded it up, and tucked it into her purse He folded up his paper and put it away. see also fold 4, fold-up unfold
bend or lay so that one part covers the other; "fold up the newspaper"; "turn up your collar"
{i} article (chair, table or bed) that folds up and put in storage when not in use; (Informal-USA) termination, end or closing of a business, breakdown (foldup of the city's basketball team); capitulation, giving in