folio Meaning, Definition & Usage

  1. noun the system of numbering pages
    pagination; paging; page number.
  2. noun a sheet of any written or printed material (especially in a manuscript or book)
    leaf.
  3. noun 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

WordNet

Fol"io noun
Etymology
Ablative of L. folium leaf. See 4th Foil.
Wordforms
plural Folios
Definitions
  1. A leaf of a book or manuscript.
  2. A sheet of paper once folded.
  3. A book made of sheets of paper each folded once (four pages to the sheet); hence, a book of the largest kind. See Note under Paper.
  4. (Print.) The page number. The even folios are on the left-hand pages and the odd folios on the right-hand.
  5. A page of a book; (Bookkeeping) a page in an account book; sometimes, two opposite pages bearing the same serial number.
  6. (Law) A leaf containing a certain number of words, hence, a certain number of words in a writing, as in England, in law proceedings 72, and in chancery, 90; in New York, 100 words.

Webster 1913