man·i·fold
ˈma-nə-ˌfōld 
1
a
: marked by diversity or variety
performs the manifold duties required of him—
J. H. Ferguson
J. H. Ferguson
b
: many
the manifold details
2
: comprehending or uniting various features : multifarious
the romantic symphony, with its manifold melodic content—P. H. Lang
P. H. Lang3
: rightfully so-called for many reasons
a manifold liar
4
: consisting of or operating many of one kind combined
a manifold bellpull
: many times : a great deal
will increase your blessings manifold
manifolded; manifolding; manifolds
: to make several or many copies
: something that is manifold: such as
a
: a whole that unites or consists of many diverse elements
the manifold of aspirations, passions, frustrations—Harry Slochower
Harry Slochower
b
: a pipe fitting with several lateral outlets for connecting one pipe with others
especially
: a fitting on an internal combustion engine that directs a fuel and air mixture to or receives the exhaust gases from several cylinders
c
d
: a topological space in which every point has a neighborhood that is homeomorphic to the interior of a sphere in Euclidean space of the same number of dimensions
Examples of manifold in a Sentence
Adjective
The benefits of this approach are manifold.
the manifold attractions of that state make it an ideal destination for a family vacation
Recent Examples on the Web
Kevin Frazier, Twin Cities, 15 Oct. 2025
The consequences can be manifold, including negatively impacting bone health, fertility, metabolism, iron levels, rate of recovery, sleep, career longevity, and emotional well-being.
—Megan Feringa, New York Times, 10 Oct. 2025
Ananya Bhattacharya, Quartz, 15 Feb. 2022
Literary Hub, 17 Oct. 2025
When designing these systems, select a partner experienced with the full cooling architecture: manifolds, piping, CDUs, chillers, pumps and cabinets.
—Steven Carlini, Forbes.com, 30 June 2025
See All Example Sentences for manifold
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Adjective
California is poised to pass AB 1064, a bill imposing manifold requirements on all operators of AI companions.
—Kevin Frazier, Twin Cities, 15 Oct. 2025
The consequences can be manifold, including negatively impacting bone health, fertility, metabolism, iron levels, rate of recovery, sleep, career longevity, and emotional well-being.
—Megan Feringa, New York Times, 10 Oct. 2025
Adverb
In the past fortnight, hope has grown manifold in the field.
—Ananya Bhattacharya, Quartz, 15 Feb. 2022
Noun
Jocko seemed fascinated by all the parts of the motor, once complimenting the curves of the exhaust manifold.
—Literary Hub, 17 Oct. 2025
When designing these systems, select a partner experienced with the full cooling architecture: manifolds, piping, CDUs, chillers, pumps and cabinets.
—Steven Carlini, Forbes.com, 30 June 2025
See All Example Sentences for manifold
Cite this Entry
“Manifold.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/manifold. Accessed 4 Nov. 2025.
Copy CitationKids Definition
manifold
1 of 3 adjective
man·i·fold
ˈman-ə-ˌfōld
1
: of many and various kinds
manifold excuses
2
: including or uniting various features
a manifold personality
3
: consisting of or operating many of one kind joined together
a manifold pipe
manifold
2 of 3 noun
: something manifold
especially
: a pipe fitting having several outlets for connecting one pipe with others
manifold
3 of 3 verb
: to make several copies
manifold a manuscript
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