fibre

/ˈfaɪ.bə(ɹ)/

//ˈfaɪ.bə(ɹ)// noun

By · According to Wiktionary data (CC BY-SA) ·

"fibre" is a 5-letter English headword indexed on PlainSpell.

The verdict

“fibre” is a moderately-common English word, ranked #11,694 in English word frequency and used as a noun.

#11,694
frequency rank, English
5
letters
6
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A single piece of a given material, elongated and roughly round in cross-section, often twisted with other fibres to form thread.

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

fibre vs fir
60% similar
fibre vs fie
60% similar
fibre vs five
60% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for fibre
PropertyValue
Headwordfibre
LanguageEnglish
Part of speechNoun
IPA/ˈfaɪ.bə(ɹ)/
Letters5
Frequency rank#11,694
Misspellings tracked6
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “fibre” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). fibre lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for fibre is 5 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈfaɪ.bə(ɹ)/. Corpus data places it at rank #11,694 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 8 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 6 likely wrong-spelling variants for fibre, with forms such as "fbire", "ffibre", and "fibbre". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 20 confusable-pair relationships, "fir", "fie", "five", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: From French fibre, from Old French, from Latin fibra. The correct English form is fibre, spelled F-I-B-R-E.

Definition

  1. 1
    A single piece of a given material, elongated and roughly round in cross-section, often twisted with other fibres to form thread.
  2. 2
    Material in the form of fibres.
  3. 3
    Dietary fibre.
  4. 4
    Moral strength and resolve.
  5. 5
    The preimage of a given point in the range of a map.
  6. 6
    Said to be of a morphism over a global element: The pullback of the said morphism along the said global element.
  7. 7
    A kind of lightweight thread of execution.
  8. 8
    A long tubular cell found in bodily tissue.

Etymology

From French fibre, from Old French, from Latin fibra.

This word in other languages

fibra(Español)fibre(Français)Faser(Deutsch)

Common misspellings

Also misspelled as: fbire,ffibre,fibbre,fibrre,firbe,ifbre

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of fibre - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

fbire2ffibre1fibbre1fibrre1firbe2ifbre2
Edit distance from "fibre"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "fibre"?
"fibre" is spelled F-I-B-R-E. The IPA pronunciation is /ˈfaɪ.bə(ɹ)/.
What does "fibre" mean?
As a noun, "fibre" means: A single piece of a given material, elongated and roughly round in cross-section, often twisted with other fibres to form thread.
What words are commonly confused with "fibre"?
"fibre" is commonly confused with "fir", "fie", "five". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "fibre"?
The IPA (International Phonetic Alphabet) transcription for "fibre" is /ˈfaɪ.bə(ɹ)/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "fibre"?
From French fibre, from Old French, from Latin fibra. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “fibre”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is F-I-B-R-E - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈfaɪ.bə(ɹ)/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “fir” - see the side-by-side comparison. fibre vs fir
  • Browse more English words and confusable pairs in the same reference. English words
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list