fibroid

/ˈfaɪ.brɔɪd/

//ˈfaɪ.brɔɪd// noun

"fibroid" is a 7-letter English headword indexed on PlainSpell.

The verdict

“fibroid” is uncommon English (frequency #87,281 among 2,507 “F” headwords), classed as a noun. The kind of spelling people second-guess.

#87,281
frequency rank, English
2,507
“F” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A benign tumour of the uterus that is composed of either fibrous connective tissue or muscle.

Corpus desk

Index EN-fibroid · fibroid · English

fibroid · rank #87,281 · 0 variants · 0 confusables

  • FREQ-RARE #87,281
  • LEN-LONG 7 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 2,507
  • PHOTO-FINISH ferritin

Nearest frequency peer: ferritin (-1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Long-tail ranks near “fibroid”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “fibroid” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for fibroid
PropertyValue
Headwordfibroid
LanguageEnglish
Part of speechNoun
IPA/ˈfaɪ.brɔɪd/
Letters7
Frequency rank#87,281
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “fibroid” in English

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).fibroidfalls in this rarity band:

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

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Rare peers in the same band: “ferritin” (#87,280), “FII” (#87,285), “Faustian” (#87,276). Among 2,507 “F” headwords, “fibroid” is #87,281. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

fibroid is uncommon English at frequency #87,281 among 2,507 “F” headwords, classed as anoun, transcribed /ˈfaɪ.brɔɪd/. Rarity is why readers land here mid-draft. 2 senses are on record.

No misspelling variants are generated for fibroid in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. We don't track a confusable pairing for this entry, which typically means the spelling is too distinctive to be mistaken for another word.

Etymologically, the entry records: From fibro- + -oid. The correct English form is fibroid, spelled F-I-B-R-O-I-D.

Definition

  1. 1
    A benign tumour of the uterus that is composed of either fibrous connective tissue or muscle.
  2. 2
    A fibroma.

Etymology

From fibro- + -oid.

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 "fibroid"?
"fibroid" is spelled F-I-B-R-O-I-D. The IPA pronunciation is /ˈfaɪ.brɔɪd/.
What does "fibroid" mean?
As a noun, "fibroid" means: A benign tumour of the uterus that is composed of either fibrous connective tissue or muscle.
How do you pronounce "fibroid"?
The IPA (International Phonetic Alphabet) transcription for "fibroid" is /ˈfaɪ.brɔɪd/. 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 "fibroid"?
From fibro- + -oid. 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "fibroid", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 7 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list