tyrannosaur

noun

"tyrannosaur" is a 11-letter English headword indexed on PlainSpell.

The verdict

“tyrannosaur” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
11
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Any large bipedal carnivorous dinosaur, of the family Tyrannosauridae, that lived in North America during the Cretaceous period.

Key facts for tyrannosaur
PropertyValue
Headwordtyrannosaur
LanguageEnglish
Part of speechNoun
Letters11
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “tyrannosaur” sits in English frequency

tyrannosaur falls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

tyrannosaur is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "Any large bipedal carnivorous dinosaur, of the family Tyrannosauridae, that lived in North America during the Cretaceous period.".

No generated misspelling entries exist for tyrannosaur in our index, suggesting the orthography follows predictable English patterns. This entry stands alone in our confusable dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: From translingual Tyrannosaurus. The correct English form is tyrannosaur, spelled T-Y-R-A-N-N-O-S-A-U-R.

Definition

  1. 1
    Any large bipedal carnivorous dinosaur, of the family Tyrannosauridae, that lived in North America during the Cretaceous period.

Etymology

From translingual Tyrannosaurus.

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). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "tyrannosaur"?
"tyrannosaur" is spelled T-Y-R-A-N-N-O-S-A-U-R.
What does "tyrannosaur" mean?
As a noun, "tyrannosaur" means: Any large bipedal carnivorous dinosaur, of the family Tyrannosauridae, that lived in North America during the Cretaceous period.
What is the origin of the word "tyrannosaur"?
From translingual Tyrannosaurus. 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 “tyrannosaur”

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

  • The one correct English spelling is T-Y-R-A-N-N-O-S-A-U-R - every other letter order is a misspelling in standard orthography.
  • 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