Definition

1. Adjective:

   • Many and varied; having many features or forms: Used to describe something that is diverse, complex, or composed of numerous different elements or aspects.

2. Noun:

   • A pipe with several outlets: In mechanics, a pipe or chamber with multiple branches for connecting one pipe to others.
   • A set of points in mathematics: In geometry and topology, a topological space that resembles Euclidean space near each point.
   • A thin paper for making copies: A lightweight paper used with carbon paper to produce multiple copies of a document.

3. Verb:

   • To make multiple copies of: To reproduce something in several identical versions.
   • (Archaic) To multiply or increase: To make something numerous or to become more numerous.

Usage Examples

• Adjective:

  • The benefits of the new policy are manifold, including economic growth and social stability.
  • She has manifold talents in music, writing, and science.

• Noun (Mechanical):

  • The mechanic replaced the cracked exhaust manifold in the car's engine.

• Noun (Mathematical):

  • In this theory, the universe can be described as a four-dimensional manifold.

• Verb:

  • Before digital printers, secretaries would manifold important documents for distribution.

Advanced Usage

• "Of manifold interest": Of diverse or multiple kinds of interest or importance.
  • The archaeological site is of manifold interest to historians, geologists, and artists.

Variants and Related Words

• Manifoldly (adverb): In a manifold manner; in many ways or respects.
  • The problem is manifoldly complex.
• Manifoldness (noun): The quality or state of being manifold; multiplicity.

Synonyms

• Adjective: Multiple, diverse, varied, multifarious, multiplex, numerous, sundry.
• Noun (for pipe): Chamber, header.
• Verb: Duplicate, copy, replicate, reproduce.

Related Phrases

• Intake/Exhaust manifold: Specific terms in automotive engineering for pipes that distribute air/fuel mixture or exhaust gases.
• Manifold wisdom: A phrase implying diverse and profound wisdom (often used in theological or philosophical contexts).

Notes on Different Meanings

• The adjective is the most common use in general language, emphasizing diversity and multiplicity.
• The noun meaning is highly specialized, with the mechanical sense being more common in everyday speech than the mathematical one.
• The verb form is now rare and considered somewhat archaic, largely replaced by words like "copy," "duplicate," or "multiply."

Adjective

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

Noun

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

Verb

1. combine or increase by multiplication
   • He managed to multiply his profits
2. make multiple copies of
   • multiply a letter