manifold

a pipe that has several lateral outlets to or from other pipes

a lightweight paper used with carbon paper to make multiple copies; "an original and two manifolds"

a set of points such as those of a closed surface or an analogue in three or more dimensions

make multiple copies of; "multiply a letter"

combine or increase by multiplication; "He managed to multiply his profits"

many and varied; having many features or forms; "manifold reasons"; "our manifold failings"; "manifold intelligence"; "the multiplex opportunities in high technology"