What does "fiber" mean?
A single elongated piece of a given material, roughly round in cross-section, often twisted with other fibers to form thread.
Fiber
/ˈfaɪ.bɚ/ noun
noun ·Common ·High school level
Meaning at a glance
- Primary sense: A single elongated piece of a given material, roughly round in cross-section, often twisted with other fibers to form thread.
- Grammar: fiber is listed as noun.
- Nearest alternatives: roughage, acetate rayon, all that lives, alpaca.
- Useful contrasts: copper wire, fiber-free, low fiber.
- Usage evidence: Ahhh! Feel that beer seep into every fiber of my being. Yep, nothing beats a cold one after work.
How to use "fiber"
- Start with the primary definition, then check the part of speech before placing the word in a sentence.
- Compare nearby synonyms to make sure "fiber" carries the exact meaning, tone, and strength you need.
- Use the example sentence as a context check. If your sentence uses the word differently, confirm that the grammar still fits.
Meaning check
- Does the word fit the sentence's grammar?
- Does it match the intended tone rather than only the dictionary definition?
- Would a simpler synonym be clearer for the reader?
- Is there enough surrounding context to prevent ambiguity?
Source and review context
This entry combines structured lexical data with WordToolSet review checks. Definitions, examples, synonyms, and usage notes may come from different source tables, so the page is designed to show evidence from more than one angle before you rely on "fiber" in a final draft.
If a word has several senses, prefer the sense that matches your sentence's grammar and surrounding context. A correct definition can still be the wrong choice when the sentence needs a different register, emphasis, or level of specificity.
Before you rely on this definition
Read the first definition as a starting point, then check the example, synonyms, and part of speech before treating "fiber" as the right word for your sentence.
If your draft is formal, technical, persuasive, or sensitive, compare "fiber" with a nearby alternative so the final choice matches both meaning and reader expectation.
Compare nearby meanings
- Use synonyms when you need a softer, stronger, simpler, or more specific word.
- Use antonyms to check the boundary of the meaning and avoid accidental contrast.
- Use the example sentence to confirm the word behaves naturally in context.
- Keep the original wording when a replacement adds complexity without improving precision.
Definition decision workflow
1. Identify the role
Check whether "fiber" is acting as noun in your sentence. A definition is only useful when the grammar matches the way the word is being used.
2. Test the nearest option
Compare it with "roughage" and other nearby choices to see whether the sentence needs a softer, stronger, or more familiar word.
3. Confirm with context
Use the example sentence below as an evidence check, then read your own sentence out loud to catch tone or rhythm problems.
Review note: Definition pages are checked for source coverage, sentence evidence, synonym support, and editorial insight before they are treated as approval-ready pages. If the evidence is too thin, the page remains available to users but is kept out of the approval-facing indexed inventory.
Final meaning check
Before publishing a sentence with "fiber", ask whether the word helps the reader understand the idea faster. A precise word should reduce confusion, not simply make the sentence look more polished.
When the definition, synonym evidence, and example context point in the same direction, the word is usually a safer choice. When they conflict, revise the sentence or choose a clearer alternative.
Definitions
Noun
- 1 A single elongated piece of a given material, roughly round in cross-section, often twisted with other fibers to form thread. US, countable
"The microscope showed a single blue fiber stuck to the sole of the shoe."
- 2 a leatherlike material made by compressing layers of paper or cloth wordnet
- 3 A material in the form of fibers. US, uncountable
"The cloth is made from strange, somewhat rough fiber."
- 4 the inherent complex of attributes that determines a persons moral and ethical actions and reactions wordnet
- 5 A material whose length is at least 1000 times its width. US, countable, uncountable
"Please use polyester fiber for this shirt."
Show 9 more definitions
- 6 any of several elongated, threadlike cells (especially a muscle fiber or a nerve fiber) wordnet
- 7 Dietary fiber. US, countable, uncountable
"Fresh vegetables are a good source of fiber."
- 8 coarse, indigestible plant food low in nutrients; its bulk stimulates intestinal peristalsis wordnet
- 9 Moral strength and resolve. US, countable, figuratively, uncountable
"The ordeal was a test of everyone's fiber."
- 10 a slender and greatly elongated substance capable of being spun into yarn wordnet
- 11 The preimage of a given point in the range of a map. US, countable, uncountable
"Under this map, any two values in the fiber of a given point on the circle differ by 2π."
- 12 The pullback of a morphism along a global element (called the fiber of the morphism over the global element). US, countable, uncountable
- 13 A kind of lightweight thread of execution. US, countable, uncountable
"We've seen how to create a new fiber and convert the current thread into a fiber (which continues to run after the conversion), but we have yet to focus on how to schedule a new fiber onto the current thread."
- 14 A long tubular cell found in bodily tissue. US, countable, uncountable
Synonyms
All synonymsAntonyms
Example
"Ahhh! Feel that beer seep into every fiber of my being. Yep, nothing beats a cold one after work."
Common questions
What is a synonym for "fiber"?
Common synonyms include: roughage, acetate rayon, all that lives, alpaca, angora, animal fiber.
How do you use "fiber" in a sentence?
Ahhh! Feel that beer seep into every fiber of my being. Yep, nothing beats a cold one after work.
How do you pronounce "fiber"?
Pronounced /ˈfaɪ.bɚ/.
Etymology
From French fibre, from Old French fibre, from Latin fibra.