sheet

n.A broad, relatively thin material that often is rectangular.A large sheet of paper on which a number of pages have been printed, to be folded and trimmed to form consecutive pages for a publication.A map or drawing, often one in a series.adj.Broad, relatively thin, and flat.

Notes

Sheet1, 4 is roughly synonymous with 'two-dimensional', in that the depth is much less than the length and width. A sheet may be pliable; when distorted it forms a curved or angular surface in three dimensions. - The pages on a sheet2 often are folded and trimmed to make a section, but a sheet may contain pages from more than one section.