prednisone

/ˈpɹɛd.nɪ.zəʊn/

//ˈpɹɛd.nɪ.zəʊn// noun

By · According to Wiktionary data (CC BY-SA) ·

"prednisone" is a 10-letter English headword indexed on PlainSpell.

The verdict

“prednisone” has 15 generated spelling variants in the English index at frequency #49,566. The variants make it a useful spelling check.

#49,566
frequency rank, English
4,417
“P” headwords
15
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A glucocorticoid C₂₁H₂₆O₅ that is a dehydrogenated analog of cortisone, used to relieve rheumatic and allergic conditions and to treat leukemia.

Corpus desk

Index EN-prednisone · prednisone · English

prednisone · rank #49,566 · 15 variants · 0 confusables

  • FREQ-MID #49,566
  • LEN-MEGA 10 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-HIGH 15 variants
  • BOOK-MID 4,417
  • PHOTO-FINISH PPA

Nearest frequency peer: PPA (-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.

Rank peers near misspelling magnet “prednisone”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “prednisone” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for prednisone
PropertyValue
Headwordprednisone
LanguageEnglish
Part of speechNoun
IPA/ˈpɹɛd.nɪ.zəʊn/
Letters10
Frequency rank#49,566
Misspellings tracked15
Confusable pairs0
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “prednisone”

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).prednisonelands here:

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

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “PPA” (#49,565), “preordered” (#49,567), “postural” (#49,564). Among 4,417 “P” headwords, “prednisone” is #49,566. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 15 spelling variants around prednisone (IPA /ˈpɹɛd.nɪ.zəʊn/), anoun. Corpus frequency is #49,566 among 4,417 “P” headwords. Dominant gloss: "A glucocorticoid C₂₁H₂₆O₅ that is a dehydrogenated analog of cortisone, used to relieve rheumatic and allergic conditions and to treat leukemia.".

Our generated misspelling index lists 15 likely wrong-spelling variants for prednisone, with forms such as "perdnisone", "pprednisone", and "prdenisone". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. No confusable counterpart is on file for this word, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: From pre(gnane) + d(ie)ne + (cort)isone. The correct English form is prednisone, spelled P-R-E-D-N-I-S-O-N-E.

Definition

  1. 1
    A glucocorticoid C₂₁H₂₆O₅ that is a dehydrogenated analog of cortisone, used to relieve rheumatic and allergic conditions and to treat leukemia.

Etymology

From pre(gnane) + d(ie)ne + (cort)isone.

Common misspellings

Also misspelled as:

  • perdnisone
  • pprednisone
  • prdenisone
  • preddnisone
  • predinsone
  • predniosne
  • prednisnoe
  • prednisoen
  • prednisonne
  • prednissone
  • prednnisone
  • prednsione
  • prendisone
  • prrednisone
  • rpednisone

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of prednisone - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

perdnisone2pprednisone1prdenisone2preddnisone1predinsone2predniosne2prednisnoe2prednisoen2
Edit distance from "prednisone"

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 "prednisone"?
"prednisone" is spelled P-R-E-D-N-I-S-O-N-E. The IPA pronunciation is /ˈpɹɛd.nɪ.zəʊn/.
What does "prednisone" mean?
As a noun, "prednisone" means: A glucocorticoid C₂₁H₂₆O₅ that is a dehydrogenated analog of cortisone, used to relieve rheumatic and allergic conditions and to treat leukemia.
What are common misspellings of "prednisone"?
Common misspellings include "perdnisone", "pprednisone", "prdenisone", "preddnisone", "predinsone". The correct spelling is "prednisone".
How do you pronounce "prednisone"?
The IPA (International Phonetic Alphabet) transcription for "prednisone" is /ˈpɹɛd.nɪ.zəʊn/. 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 "prednisone"?
From pre(gnane) + d(ie)ne + (cort)isone. 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 "prednisone", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 10 letters (nearest by frequency rank).

preordered#49,567platformer#49,556neurologic#49,522Schuylkill#49,620

Similar misspelling depth

Headwords with a similar count of attested misspellings (15 here; floor ≥5).

Sandhurst15 variantsmisreading15 variantsshutdowns15 variantsspringbok15 variants

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

Source: FrequencyWords open word-frequency list