folio meaning and definition

FOLIO noun

Definition of folio (noun)

1. the system of numbering pages
   • synonyms: page number, pagination, paging
2. a sheet of any written or printed material (especially in a manuscript or book)
   • synonyms: leaf
3. a book (or manuscript) consisting of large sheets of paper folded in the middle to make two leaves or four pages
   • "the first folio of Shakespeare's plays"