man·i·fold 
(mănə-fōld′)
(mănə-fōld′)adj.
1. Many and varied; of many kinds; multiple: our manifold failings.
2. Having many features or forms: manifold intelligence.
3. Being such for a variety of reasons: a manifold traitor.
4. Consisting of or operating several devices of one kind at the same time.
n.
1. A whole composed of diverse elements.
2. One of several copies.
3. A pipe or chamber having multiple apertures for making connections.
4. Mathematics A topological space in which each point has a neighborhood that is equivalent to a neighborhood in Euclidean space. The surface of a sphere is a two-dimensional manifold because the neighborhood of each point is equivalent to a part of the plane.
tr.v. man·i·fold·ed, man·i·fold·ing, man·i·folds
1. To make several copies of, as with carbon paper.
2. To make manifold; multiply.
[Middle English, from Old English manigfeald : manig, many; see MANY + -feald, -fald, -fold.]
mani·fold′ly adv.
mani·fold′ness n.