∙ A page of a book, that is, one side of a leaf of a book.
∙ A page number. The even folios are on the left-hand pages and the odd folios on the right-hand pages. printing
∙ A sheet of paper folded in half. paper
∙ A book made of sheets of paper each folded in half (two leaves or four pages to the sheet); hence, a book of the largest kind, exceeding 30 cm in height. books
∙ A page in an account book; sometimes, two opposite pages bearing the same serial number. accounting
∙ 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. law, dated, 19th to early 20th century
Verb
∙ To put a serial number on each folio or page of (a book); to page.