OB-GYN

/əʊ.bi.dʒi.waɪˈɛn/

//əʊ.bi.dʒi.waɪˈɛn// noun

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

"ob-gyn" is a 5-letter English headword indexed on PlainSpell.

The verdict

“OB-GYN” is outside the top-ranked English vocabulary, used as a noun - the kind of word writers most often double-check.

Unranked
below top-frequency English
6
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Obstetrics and gynecology.

Key facts for OB-GYN
PropertyValue
HeadwordOB-GYN
LanguageEnglish
Part of speechNoun
IPA/əʊ.bi.dʒi.waɪˈɛn/
Letters6
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “OB-GYN” sits in English frequency

OB-GYN falls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for OB-GYN is 6 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /əʊ.bi.dʒi.waɪˈɛn/. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. Wiktionary records 3 distinct senses for this headword, so context determines which meaning a reader should apply.

Our edit-distance generator produced no likely misspellings for OB-GYN, since its letter pattern doesn't lend itself to common typo substitutions. No close-neighbour confusable shows up for this headword in our dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: Blend of obstetrics + gynecology. The correct English form is OB-GYN, spelled O-B---G-Y-N.

Definition

  1. 1
    Obstetrics and gynecology.
  2. 2
    A physician in these specialties; an obstetrician-gynecologist.
  3. 3
    (prefixed with the) A clinic or doctor's office with these specialties.

Etymology

Blend of obstetrics + gynecology.

Synonyms

obs and gynaeO&Gobstetrician-gynecologist

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "OB-GYN"?
"OB-GYN" is spelled O-B---G-Y-N. The IPA pronunciation is /əʊ.bi.dʒi.waɪˈɛn/.
What does "OB-GYN" mean?
As a noun, "OB-GYN" means: Obstetrics and gynecology.
How do you pronounce "OB-GYN"?
The IPA (International Phonetic Alphabet) transcription for "OB-GYN" is /əʊ.bi.dʒi.waɪˈɛn/. 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 "OB-GYN"?
Blend of obstetrics + gynecology. 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.

Using “OB-GYN”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is O-B---G-Y-N - every other letter order is a misspelling in standard orthography.
  • Say it as /əʊ.bi.dʒi.waɪˈɛn/ (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.

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list