fo

predlog preposition

1. Towards; in the direction of. He was headed for the door when he remembered.
2. Directed at; intended to belong to. I have something for you.
3. In order to help, benefit, gratify, honor etc. (someone or something). Everything I do, I do for you.
4. To be used or treated in a stated way, or with a stated purpose. The cake is for Tom and Helen's anniversary.

ot noun

1. (books) 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. A rare copy of Shakespeare’s First Folio.
2. A leaf of a book or manuscript
3. A page of a book, that is, one side of a leaf of a book.
4. A page number. The even folios are on the left-hand pages and the odd folios on the right-hand pages.