1.Definition: 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"

Category: Objects

2.Definition: a sheet of any written or printed material (especially in a manuscript or book)

Related Noun(s):leaf

Category: General

3.Definition: the system of numbering pages

Related Noun(s):pagination

Category: General