doctor

/ˈdɒktə(ɹ)/

//ˈdɒktə(ɹ)// noun

"doctor" is a 6-letter English headword indexed on PlainSpell.

The verdict

“doctor” is a regularly-used English word, ranked #1,332 in English word frequency and used as a noun.

#1,332
frequency rank, English
6
letters
9
tracked misspellings
9
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A physician; a member of the medical profession; one who is trained and licensed to heal the sick or injured. The final examination and qualification may award a doctor degree in which case the pos...

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

doctor vs door
67% similar
doctor vs donor
67% similar
doctor vs doctors
86% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for doctor
PropertyValue
Headworddoctor
LanguageEnglish
Part of speechNoun
IPA/ˈdɒktə(ɹ)/
Letters6
Frequency rank#1,332
Misspellings tracked9
Confusable pairs9
SourceWiktionary (kaikki.org)

Where “doctor” 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). doctor lands here:

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

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

Spelling & Dictionary Insight

The English entry for doctor is 6 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈdɒktə(ɹ)/. Corpus data places it at rank #1,332 in overall English word frequency, indicating it appears regularly in written and spoken text. Wiktionary records 9 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 9 likely wrong-spelling variants for doctor, with forms such as "dcotor", "ddoctor", and "docctor". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 9 confusable-pair relationships, "door", "donor", "doctors", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Middle English doctor, doctour (“an expert, authority on a subject”), from Anglo-Norman doctour, from Latin doctor (“teacher”), from doceō (“to teach”). Displaced native Middle English lerare (“doctor, teacher”) (from Middle English leren (“to teach, i… The correct English form is doctor, spelled D-O-C-T-O-R.

Definition

  1. 1
    A physician; a member of the medical profession; one who is trained and licensed to heal the sick or injured. The final examination and qualification may award a doctor degree in which case the post-nominal letters are DO, DPM, MD, DMD, or DDS in the US, or MBBS or BDS in the UK.
  2. 2
    A person who has attained a doctorate, such as a Ph.D. or Th.D. or one of many other terminal degrees conferred by a college or university.
  3. 3
    A veterinarian; a medical practitioner who treats non-human animals.
  4. 4
    A nickname for a person who has special knowledge or talents to manipulate or arrange transactions.
  5. 5
    A teacher; one skilled in a profession or a branch of knowledge; a learned man.
  6. 6
    Any mechanical contrivance intended to remedy a difficulty or serve some purpose in an exigency.
  7. 7
    A fish, the friar skate.
  8. 8
    A witchdoctor.
  9. 9
    A ship's cook.

Etymology

From Middle English doctor, doctour (“an expert, authority on a subject”), from Anglo-Norman doctour, from Latin doctor (“teacher”), from doceō (“to teach”). Displaced native Middle English lerare (“doctor, teacher”) (from Middle English leren (“to teach, instruct”) from Old English lǣran, lēran (“to teach, instruct, guide”), compare Old English lārēow (“teacher, master”)). Displaced Old English lǣċe (“doctor, physician”).

Synonyms

This word in other languages

Common misspellings

Also misspelled as: dcotor,ddoctor,docctor,docotr,doctorr,doctro,docttor,dotcor,odctor

Misspelling Pattern Breakdown

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

dcotor2ddoctor1docctor1docotr2doctorr1doctro2docttor1dotcor2
Edit distance from "doctor"

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 "doctor"?
"doctor" is spelled D-O-C-T-O-R. The IPA pronunciation is /ˈdɒktə(ɹ)/.
What does "doctor" mean?
As a noun, "doctor" means: A physician; a member of the medical profession; one who is trained and licensed to heal the sick or injured. The final examination and qualification may award a doctor degree in which case the pos...
What words are commonly confused with "doctor"?
"doctor" is commonly confused with "door", "donor", "doctors". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "doctor"?
The IPA (International Phonetic Alphabet) transcription for "doctor" is /ˈdɒktə(ɹ)/. 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 "doctor"?
From Middle English doctor, doctour (“an expert, authority on a subject”), from Anglo-Norman doctour, from Latin doctor (“teacher”), from doceō (“to teach”). Displaced native Middle English lerare (“doctor, teacher”) (from Middle English leren (“t... 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 “doctor”

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

  • The one correct English spelling is D-O-C-T-O-R - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈdɒktə(ɹ)/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “door” - see the side-by-side comparison. doctor vs door
  • 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