fiber
fi·ber/ˈfaɪ.bɚ/noun
fiber is spelled F-I-B-E-R: 5 letters and one syllable (fi·ber). It appears 11 times per million words in written English, the 6,456th most frequent word form (wordfreq, 2021 data). As a noun, fiber means “A single elongated piece of a given material, roughly round in cross-section, often twisted with other fibers to form thread” (English Wiktionary, September 2026). The plural of fiber is fibers.
How many letters and syllables are in fiber?
| Letters | 5: F-I-B-E-R |
|---|---|
| Syllables | 1: fi·ber |
| In writing | 11 times per million words; the 6,456th most frequent word form |
| Wrong spellings searched | none measured in search |
| Rhymes with | |
| Same letters |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media); rhymes and same-letter words are computed by PlainSpell from its own word list.
How common is fiber?
Fiber appears 11 times per million words in written English, the 6,456th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce fiber?
- US /ˈfaɪ.bɚ/
- UK /ˈfaɪ.bə/
Fiber has one syllable, split fi·ber in writing.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: En-us-fiber.ogg, Wikimedia Commons (author and licence on each file's page).
What rhymes with fiber?
3 words on PlainSpell end in the same sounds as fiber from its last stressed vowel (/aɪbəɹ/):
Spelled with the same letters in another order: brief, fibre.
Computed by PlainSpell from the pronunciations in the English Wiktionary (dump of September 2, 2026): a rhyme shares every sound from the last stressed vowel to the end; ordered by written frequency (wordfreq 3.1).
Forms of fiber
- fibers plural
- fibre
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does fiber mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
USA single elongated piece of a given material, roughly round in cross-section, often twisted with other fibers to form thread.
The microscope showed a single blue fiber stuck to the sole of the shoe.
- 2
USA material in the form of fibers.
The cloth is made from strange, somewhat rough fiber.
- 3
USA material whose length is at least 1000 times its width.
Please use polyester fiber for this shirt.
- 4
USDietary fiber.
Fresh vegetables are a good source of fiber.
- 5
USMoral strength and resolve.
The ordeal was a test of everyone's fiber.
- 6
USThe preimage of a given point in the range of a map.
Under this map, any two values in the fiber of a given point on the circle differ by 2π.
- 7
USThe pullback of a morphism along a global element (called the fiber of the morphism over the global element).
- 8
USA kind of lightweight thread of execution.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does fiber come from?
From French fibre, from Old French fibre, from Latin fibra.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).