Folio and Sum

Folio noun - A book (or manuscript) consisting of large sheets of paper folded in the middle to make two leaves or four pages.

Sum and folio are semantically related. in unit of the mathematical system topic. In some cases you can use "Sum" instead a noun "Folio".

Sum noun - A complete amount of something.

Folio and sum are semantically related. Sometimes you can use "Folio" instead a noun "Sum".