名詞 manifold:

1. a pipe that has several lateral outlets to or from other pipes
2. a lightweight paper used with carbon paper to make multiple copies
   同義詞：manifold paper
3. a set of points such as those of a closed surface or an analogue in three or more dimensions

動詞 manifold:

1. make multiple copies of
2. combine or increase by multiplication
   同義詞：multiply

形容詞 manifold:

1. many and varied; having many features or forms
   同義詞：multiplex

1. His interests are manifold.
   他的興趣廣泛。
2. The uses of this machine are manifold.
   這臺機器有多種用途。

man.i.fold

adj.（形容詞）
Many and varied; of many kinds; multiple:
繁多的：許多和多樣的；多種的；多個的：
例句：
our manifold failings.
我們在各方面的損失

Having many features or forms:
具有許多特點或形式的：
例句：
manifold intelligence.
多方面的智慧

Being such for a variety of reasons:
十足的：有許多原因使之成為這樣的：
例句：
a manifold traitor.
一個十足的叛徒

Consisting of or operating several devices of one kind at the same time.
同時操作的：同時操作某類部件或由某一類部件組成的
n.（名詞）
A whole composed of diverse elements.
多樣性：由許多因素構(gòu)成的整體
One of several copies.
復印件：幾份文本中的一本
A pipe or chamber having multiple apertures for making connections.
多支管：具有幾個用于連接空口的管子或空腔
Mathematics A topologic space or surface.
【數(shù)學】 簇：拓撲學的空間或面
v.tr.（及物動詞）
man.i.fold.ed,man.i.fold.ing,man.i.folds
To make several copies of, as with carbon paper.
復寫：用如復寫紙來做幾份
To make manifold; multiply.
使多樣化；增加

來源：
Middle English
中古英語
from Old English manigfeald
源自 古英語 manigfeald
manig [many] * see many
manig [許多] *參見 many
-feald, -fald [-fold]
-feald, -fald [后綴，表.多.]

【引伸】
man.ifold.ly
adv.（副詞）
man.ifold.ness
n.（名詞）