1) of, with, documents (documentary)
2) a substance in the form of a sheet, used for writing, printing, drawing, wrapping, packing etc; documents showing who a person or thing is, what authority he or it has etc (paper)
3) the starting point (of a river); a place or person from which something comes or is got; original documents etc for an academic study (source)
4) a lump of soft material used to keep things apart or in place, or to stop up a hole; a collection (of banknotes, documents etc) folded or rolled together (wad)
a metal tool with a rough surface, used for cutting or smoothing hard substances; any kind of folder, case etc used for keeping papers etc together
system of order, placement for ease of use
(an example of) evidence that is sufficient to show that something is a fact
evidence, authentication
proof
proof
