spinosaurus
/ˌspaɪnəˈsɔːɹəs/
"spinosaurus" is a 11-letter English headword indexed on PlainSpell.
The verdict
“spinosaurus” is uncommon English (frequency #92,100 among 54,294 “S” headwords), classed as a noun. The kind of spelling people second-guess.
- #92,100
- frequency rank, English
- 54,294
- “S” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A large, extinct, carnivorous dinosaur of genus †Spinosaurus, with a long snout like that of a crocodile and with a sail on its back. It is considered to be the largest theropod dinosaur.
| Property | Value |
|---|---|
| Headword | spinosaurus |
| Language | English |
| Part of speech | Noun |
| IPA | /ˌspaɪnəˈsɔːɹəs/ |
| Letters | 11 |
| Frequency rank | #92,100 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “spinosaurus” sits in English frequency
Rare enough to double-check
spinosaurus is uncommon English at frequency #92,100 among 54,294 “S” headwords, classed as anoun, transcribed /ˌspaɪnəˈsɔːɹəs/. Rarity is why readers land here mid-draft. Gloss: "A large, extinct, carnivorous dinosaur of genus †Spinosaurus, with a long snout like that of a crocodile and with a sail on its back. It is considered to be the largest theropod dinosaur.".
Zero misspellings are on record for spinosaurus in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. Our dataset records no confusable match here, since nothing in our dataset looks or sounds close enough to cause mix-ups.
Etymologically, the entry records: From the taxonomic name Spinosaurus. By surface analysis, spino- (“spine”) + -saurus (suffix forming names for dinosaurs). The correct English form is spinosaurus, spelled S-P-I-N-O-S-A-U-R-U-S.
Definition
- 1A large, extinct, carnivorous dinosaur of genus †Spinosaurus, with a long snout like that of a crocodile and with a sail on its back. It is considered to be the largest theropod dinosaur.
Etymology
From the taxonomic name Spinosaurus. By surface analysis, spino- (“spine”) + -saurus (suffix forming names for dinosaurs).
This word in other languages
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
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Using “spinosaurus”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is S-P-I-N-O-S-A-U-R-U-S - every other letter order is a misspelling in standard orthography.
- Say it as /ˌspaɪnəˈsɔːɹəs/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Browse more English words and confusable pairs in the same reference. English words
Other uncommon English words near this 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.