cortisone
/ˈkɔː.tɪ.zəʊn/
"cortisone" is a 9-letter English headword indexed on PlainSpell.
The verdict
“cortisone” is an uncommon English word, ranked #50,442 in English word frequency and used as a noun.
- #50,442
- frequency rank, English
- 9
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A corticosteroid hormone, closely related to corticosterone, produced by the adrenal cortex. One of the glucocorticoids, it is also made synthetically for use as an anti-inflammatory and antiallerg...
| Property | Value |
|---|---|
| Headword | cortisone |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈkɔː.tɪ.zəʊn/ |
| Letters | 9 |
| Frequency rank | #50,442 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “cortisone” sits in English frequency
Spelling & Dictionary Insight
The English entry for cortisone is 9 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈkɔː.tɪ.zəʊn/. Corpus data places it at rank #50,442 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "A corticosteroid hormone, closely related to corticosterone, produced by the adrenal cortex. One of the glucocorticoids, it is also made synthetically for use as an anti-inflammatory and antiallerg...".
We couldn't generate a plausible misspelling set for cortisone, suggesting the orthography follows predictable English patterns. No close-neighbour confusable shows up for this headword in our dataset, which typically means the spelling is too distinctive to be mistaken for another word.
Etymologically, the entry records: Shortening of corticosterone. The correct English form is cortisone, spelled C-O-R-T-I-S-O-N-E.
Definition
- 1A corticosteroid hormone, closely related to corticosterone, produced by the adrenal cortex. One of the glucocorticoids, it is also made synthetically for use as an anti-inflammatory and antiallergy agent. 17-hydroxy-11-dehydrocorticosterone, with formula C₂₁H₂₈O₅.
Etymology
Shortening of corticosterone.
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 “cortisone”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is C-O-R-T-I-S-O-N-E - every other letter order is a misspelling in standard orthography.
- Say it as /ˈkɔː.tɪ.zəʊn/ (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
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.