hypothyroidism

/ˌhaɪpəˈθaɪɹɔɪˌdɪzəm/

//ˌhaɪpəˈθaɪɹɔɪˌdɪzəm// noun

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

"hypothyroidism" is a 14-letter English headword indexed on PlainSpell.

The verdict

“hypothyroidism” has 23 generated spelling variants in the English index at frequency #42,705. The variants make it a useful spelling check.

#42,705
frequency rank, English
2,646
“H” headwords
23
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The disease state caused by insufficient production of thyroid hormone by the thyroid gland.

Corpus desk

Index EN-hypothyroidism · hypothyroidism · English

hypothyroidism · rank #42,705 · 23 variants · 0 confusables

  • FREQ-MID #42,705
  • LEN-MEGA 14 letters
  • VOW-6 6 vowels
  • CONFUS-0 No pairs
  • VAR-HIGH 23 variants
  • BOOK-MID 2,646
  • PHOTO-FINISH hypoglycemia

Nearest frequency peer: hypoglycemia (-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 “hypothyroidism”

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

corpus weight

What this shows “hypothyroidism” 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 hypothyroidism
PropertyValue
Headwordhypothyroidism
LanguageEnglish
Part of speechNoun
IPA/ˌhaɪpəˈθaɪɹɔɪˌdɪzəm/
Letters14
Frequency rank#42,705
Misspellings tracked23
Confusable pairs0
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “hypothyroidism”

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

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Same rarity band neighbours include “hypoglycemia” (#42,704), “Hyland” (#42,703), “immeasurably” (#42,707). Among 2,646 “H” headwords, “hypothyroidism” is #42,705. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 23 spelling variants around hypothyroidism (IPA /ˌhaɪpəˈθaɪɹɔɪˌdɪzəm/), anoun. Corpus frequency is #42,705 among 2,646 “H” headwords. Dominant gloss: "The disease state caused by insufficient production of thyroid hormone by the thyroid gland.".

Our generated misspelling index lists 23 likely wrong-spelling variants for hypothyroidism, with forms such as "hhypothyroidism", "hpyothyroidism", and "hyopthyroidism". 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, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: Coined c. between 1900 and 1905 from hypo- (“under”) + thyroid + -ism. The correct English form is hypothyroidism, spelled H-Y-P-O-T-H-Y-R-O-I-D-I-S-M.

Definition

  1. 1
    The disease state caused by insufficient production of thyroid hormone by the thyroid gland.

Etymology

Coined c. between 1900 and 1905 from hypo- (“under”) + thyroid + -ism.

This word in other languages

Hypothyreose(Deutsch)

Common misspellings

Also misspelled as:

  • hhypothyroidism
  • hpyothyroidism
  • hyopthyroidism
  • hypohtyroidism
  • hypothhyroidism
  • hypothryoidism
  • hypothyoridism
  • hypothyriodism
  • hypothyrodiism
  • hypothyroiddism
  • hypothyroidims
  • hypothyroidismm
  • hypothyroidissm
  • hypothyroidsim
  • hypothyroiidsm
  • hypothyrroidism
  • hypothyyroidism
  • hypotthyroidism
  • hypotyhroidism
  • hyppothyroidism
  • hyptohyroidism
  • hyypothyroidism
  • yhpothyroidism

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of hypothyroidism - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

hhypothyroidism1hpyothyroidism2hyopthyroidism2hypohtyroidism2hypothhyroidism1hypothryoidism2hypothyoridism2hypothyriodism2
Edit distance from "hypothyroidism"

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 "hypothyroidism"?
"hypothyroidism" is spelled H-Y-P-O-T-H-Y-R-O-I-D-I-S-M. The IPA pronunciation is /ˌhaɪpəˈθaɪɹɔɪˌdɪzəm/.
What does "hypothyroidism" mean?
As a noun, "hypothyroidism" means: The disease state caused by insufficient production of thyroid hormone by the thyroid gland.
What are common misspellings of "hypothyroidism"?
Common misspellings include "hhypothyroidism", "hpyothyroidism", "hyopthyroidism", "hypohtyroidism", "hypothhyroidism". The correct spelling is "hypothyroidism".
How do you pronounce "hypothyroidism"?
The IPA (International Phonetic Alphabet) transcription for "hypothyroidism" is /ˌhaɪpəˈθaɪɹɔɪˌdɪzəm/. 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 "hypothyroidism"?
Coined c. between 1900 and 1905 from hypo- (“under”) + thyroid + -ism. 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 "hypothyroidism", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 14 letters (nearest by frequency rank).

irreconcilable#42,715liberalisation#42,746macroeconomics#42,757encephalopathy#43,136

Similar misspelling depth

Headwords with a similar count of attested misspellings (23 here; floor ≥5).

counterintuitive23 variantstrustworthiness23 variantsmiscommunication23 variantsinsubordination23 variants

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

Source: FrequencyWords open word-frequency list