English to English

verb (v)

• bend or lay so that one part covers the other(verb.contact)

  Example:
  Fold up the newspaper.
  

  Synonym:
  fold, turn up
  Antonym:
  open, spread, spread out, unfold
  

  source: wordnet30
• become folded or folded up(verb.change)

  Synonym:
  fold
  

  source: wordnet30