estrogen

/ˈɛstɹəd͡ʒən/

//ˈɛstɹəd͡ʒən// noun

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

"estrogen" is a 8-letter English headword indexed on PlainSpell.

The verdict

“estrogen” has 12 generated spelling variants in the English index at frequency #18,071. The variants make it a useful spelling check.

#18,071
frequency rank, English
2,246
“E” headwords
12
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Any of a group of steroids that are secreted by the ovaries and function as female sex hormones.

Corpus desk

Index EN-estrogen · estrogen · English

estrogen · rank #18,071 · 12 variants · 0 confusables

  • FREQ-MID #18,071
  • LEN-LONG 8 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-MID 12 variants
  • BOOK-MID 2,246
  • PHOTO-FINISH equitable

Nearest frequency peer: equitable (-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 “estrogen”

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

corpus weight

What this shows “estrogen” 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 estrogen
PropertyValue
Headwordestrogen
LanguageEnglish
Part of speechNoun
IPA/ˈɛstɹəd͡ʒən/
Letters8
Frequency rank#18,071
Misspellings tracked12
Confusable pairs0
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “estrogen”

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).estrogenlands here:

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

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “equitable” (#18,070), “exert” (#18,073), “EMS” (#18,068). Among 2,246 “E” headwords, “estrogen” is #18,071. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 12 spelling variants around estrogen (IPA /ˈɛstɹəd͡ʒən/), anoun. Corpus frequency is #18,071 among 2,246 “E” headwords. Dominant gloss: "Any of a group of steroids that are secreted by the ovaries and function as female sex hormones.".

Our generated misspelling index lists 12 likely wrong-spelling variants for estrogen, with forms such as "esrtogen", "esstrogen", and "estorgen". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. This entry stands alone in our confusable dataset, which typically means the spelling is too distinctive to be mistaken for another word.

Etymologically, the entry records: From estro- (estrus) + -gen (“a producer of”). The correct English form is estrogen, spelled E-S-T-R-O-G-E-N.

Definition

  1. 1
    Any of a group of steroids that are secreted by the ovaries and function as female sex hormones.

Recorded use

Wiktionary examples

These source excerpts show how estrogen appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. secondly, in many hormone-target organ interactions including the effect of estrogen on rat uterus, growth hormone and hydrocortisone on rat liver and thyroid hormone on toadpole liver, newly formed microsomes have been isolated which have increased protein synthesizing ability (Tata, 1968).
  2. It is known as Hatschek's pit and has been found to react positively to antibodies against substance P, met-enkephalin, cholecystokinin (CCK), mammalian luteinizing hormone (LH), and the enzyme aromatase (P450ₐᵣₒ), which converts certain androgens into estrogens (see Chapter 3).

Etymology

From estro- (estrus) + -gen (“a producer of”).

Synonyms

Eestro

This word in other languages

estrógeno(Español)œstrogène(Français)Östrogen(Deutsch)

Common misspellings

Also misspelled as:

  • esrtogen
  • esstrogen
  • estorgen
  • estrgoen
  • estroegn
  • estrogenn
  • estroggen
  • estrogne
  • estrrogen
  • esttrogen
  • etsrogen
  • setrogen

Misspelling Pattern Breakdown

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

esrtogen2esstrogen1estorgen2estrgoen2estroegn2estrogenn1estroggen1estrogne2
Edit distance from "estrogen"

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 "estrogen"?
"estrogen" is spelled E-S-T-R-O-G-E-N. The IPA pronunciation is /ˈɛstɹəd͡ʒən/.
What does "estrogen" mean?
As a noun, "estrogen" means: Any of a group of steroids that are secreted by the ovaries and function as female sex hormones.
What are common misspellings of "estrogen"?
Common misspellings include "esrtogen", "esstrogen", "estorgen", "estrgoen", "estroegn". The correct spelling is "estrogen".
How do you pronounce "estrogen"?
The IPA (International Phonetic Alphabet) transcription for "estrogen" is /ˈɛstɹəd͡ʒən/. 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 "estrogen"?
From estro- (estrus) + -gen (“a producer of”). 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 "estrogen", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 8 letters (nearest by frequency rank).

felicity#18,076diagonal#18,059Galloway#18,085decorate#18,056

Similar misspelling depth

Headwords with a similar count of attested misspellings (12 here; floor ≥5).

flattened12 variantsHelsinki12 variantscoatings12 variantsbreached12 variants

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

Source: FrequencyWords open word-frequency list