progesterone

/pɹəˈd͡ʒɛstəɹəʊn/

//pɹəˈd͡ʒɛstəɹəʊn// noun

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

"progesterone" is a 12-letter English headword indexed on PlainSpell.

The verdict

“progesterone” has 18 generated spelling variants in the English index at frequency #28,677. The variants make it a useful spelling check.

#28,677
frequency rank, English
46,516
“P” headwords
18
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A steroid hormone, secreted by the ovaries, whose function is to prepare the uterus for the implantation of a fertilized ovum and to maintain pregnancy.

Corpus desk

Index EN-progesterone · progesterone · English

progesterone · rank #28,677 · 18 variants · 0 confusables

  • FREQ-MID #28,677
  • LEN-MEGA 12 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-HIGH 18 variants
  • BOOK-DENSE 46,516
  • PHOTO-FINISH principled

Nearest frequency peer: principled (-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 “progesterone”

Lower corpus rank = more everyday usage (inverted bar length for readability)

corpus weight

What this shows Bars show where “progesterone” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.

Source FrequencyWords open word-frequency list As of May 6, 2026
Key facts for progesterone
PropertyValue
Headwordprogesterone
LanguageEnglish
Part of speechNoun
IPA/pɹəˈd͡ʒɛstəɹəʊn/
Letters12
Frequency rank#28,677
Misspellings tracked18
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “progesterone” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). progesterone lands here:

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

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 18 spelling variants around progesterone (IPA /pɹəˈd͡ʒɛstəɹəʊn/), anoun. Corpus frequency is #28,677 among 46,516 “P” headwords. Wiktionary lists 2 senses, so context still picks the gloss.

Our generated misspelling index lists 18 likely wrong-spelling variants for progesterone, with forms such as "porgesterone", "pprogesterone", and "prgoesterone". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. 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 pro- + Latin gestāre (“to bear, to carry”) + -one. The correct English form is progesterone, spelled P-R-O-G-E-S-T-E-R-O-N-E.

Definition

  1. 1
    A steroid hormone, secreted by the ovaries, whose function is to prepare the uterus for the implantation of a fertilized ovum and to maintain pregnancy.
  2. 2
    A synthetic version of the compound, used in contraceptive pills and other pharmaceutical products.

Etymology

From pro- + Latin gestāre (“to bear, to carry”) + -one.

This word in other languages

progesterona(Español)progestérone(Français)Progesteron(Deutsch)

Common misspellings

Also misspelled as:

  • porgesterone
  • pprogesterone
  • prgoesterone
  • proegsterone
  • progesetrone
  • progessterone
  • progesteorne
  • progesternoe
  • progesteroen
  • progesteronne
  • progesterrone
  • progestreone
  • progestterone
  • progetserone
  • proggesterone
  • progseterone
  • prrogesterone
  • rpogesterone

Misspelling Pattern Breakdown

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

porgesterone2pprogesterone1prgoesterone2proegsterone2progesetrone2progessterone1progesteorne2progesternoe2
Edit distance from "progesterone"

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

How do you spell "progesterone"?
"progesterone" is spelled P-R-O-G-E-S-T-E-R-O-N-E. The IPA pronunciation is /pɹəˈd͡ʒɛstəɹəʊn/.
What does "progesterone" mean?
As a noun, "progesterone" means: A steroid hormone, secreted by the ovaries, whose function is to prepare the uterus for the implantation of a fertilized ovum and to maintain pregnancy.
What are common misspellings of "progesterone"?
Common misspellings include "porgesterone", "pprogesterone", "prgoesterone", "proegsterone", "progesetrone". The correct spelling is "progesterone".
How do you pronounce "progesterone"?
The IPA (International Phonetic Alphabet) transcription for "progesterone" is /pɹəˈd͡ʒɛstəɹəʊn/. 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 "progesterone"?
From pro- + Latin gestāre (“to bear, to carry”) + -one. 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 "progesterone", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 12 letters (nearest by frequency rank).

intermission#28,598inexplicably#28,594implantation#28,589immunization#28,588

Similar misspelling depth

Headwords with a similar count of attested misspellings (18 here; floor ≥5).

irreplaceable18 variantsbackpacking18 variantsconsignment18 variantscandlelight18 variants
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