brontosaurus
"brontosaurus" is a 12-letter English headword indexed on PlainSpell.
The verdict
“brontosaurus” is uncommon English (frequency #78,437 among 31,241 “B” headwords), classed as a noun. The kind of spelling people second-guess.
- #78,437
- frequency rank, English
- 31,241
- “B” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - One of the largest land animals to ever walk the earth; a Brontosaurus.
Corpus desk
Index EN-brontosaurus · brontosaurus · English
brontosaurus · rank #78,437 · 0 variants · 0 confusables
- FREQ-RARE #78,437
- LEN-MEGA 12 letters
- VOW-5 5 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-DENSE 31,241
- PHOTO-FINISH Brittan
Nearest frequency peer: Brittan (-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.
Frequency neighbourhood for “brontosaurus”
Lower corpus rank = more everyday usage (inverted bar length for readability)
- bridie
bridie
21,569 corpus weight
- briefer
briefer
21,568 corpus weight
- brims
brims
21,566 corpus weight
- Brittan
Brittan
21,565 corpus weight
- brontosaurus
brontosaurus
21,564 corpus weight
- brouhaha
brouhaha
21,562 corpus weight
What this shows Bars show where “brontosaurus” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.
| Property | Value |
|---|---|
| Headword | brontosaurus |
| Language | English |
| Part of speech | Noun |
| Letters | 12 |
| Frequency rank | #78,437 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “brontosaurus” sits in English frequency
Rare enough to double-check
brontosaurus is uncommon English at frequency #78,437 among 31,241 “B” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "One of the largest land animals to ever walk the earth; a Brontosaurus.".
Our edit-distance generator produced no likely misspellings for brontosaurus, typically a sign the spelling maps closely to how the word sounds. No close-neighbour confusable shows up for this headword in our dataset, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: From New Latin, from Ancient Greek βροντή (brontḗ, “thunder”) + -saurus. The correct English form is brontosaurus, spelled B-R-O-N-T-O-S-A-U-R-U-S.
Definition
- 1One of the largest land animals to ever walk the earth; a Brontosaurus.
Etymology
From New Latin, from Ancient Greek βροντή (brontḗ, “thunder”) + -saurus.
Synonyms
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.
PlainSpell is rendered directly from structured Wiktionary extracts and open word-frequency lists, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 6, 2026. Primary sources: Wiktionary (via kaikki.org) and FrequencyWords.
Frequently Asked Questions
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "brontosaurus", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 12 letters (nearest by frequency rank).
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.