mule

/mjuːl/

//mjuːl// noun

"mule" is a 4-letter English headword indexed on PlainSpell.

The verdict

“mule” has 5 generated spelling variants in the English index at frequency #16,279. The variants make it a useful spelling check.

#16,279
frequency rank, English
4,057
“M” headwords
5
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The generally sterile male or female hybrid offspring of a male donkey and a female horse.

Corpus desk

Index EN-mule · mule · English

mule · rank #16,279 · 5 variants · 20 confusables

  • FREQ-MID #16,279
  • LEN-MID 4 letters
  • VOW-2 2 vowels
  • CONFUS-HIGH 20 pairs
  • VAR-MID 5 variants
  • BOOK-MID 4,057
  • PHOTO-FINISH mythical

Nearest frequency peer: mythical (+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 “mule”

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

corpus weight

What this shows Bars show where “mule” 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 September 3, 2026

Visual similarity to commonly confused words

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

mule vs mum
50% similar
mule vs mun
50% similar
mule vs must
50% similar

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

Key facts for mule
PropertyValue
Headwordmule
LanguageEnglish
Part of speechNoun
IPA/mjuːl/
Letters4
Frequency rank#16,279
Misspellings tracked5
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “mule” 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).mulelands here:

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

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Same rarity band neighbours include “mythical” (#16,280), “medically” (#16,277), “Nathaniel” (#16,281). Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 5 spelling variants around mule (IPA /mjuːl/), anoun. Corpus frequency is #16,279 among 4,057 “M” headwords. Wiktionary lists 10 senses, so context still picks the gloss.

Our generated misspelling index lists 5 likely wrong-spelling variants for mule, with forms such as "mlue", "mmule", and "muel". 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 20 confusable-pair relationships, "mum", "mun", "must", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: From Middle English mule, from Anglo-Norman mule and Old English mūl, both from Latin mūlus, from Proto-Indo-European *mukslós. Compare Late Latin muscellus (“young he-mule”), Old East Slavic мъшкъ (mŭškŭ, “mule”), Ancient Greek (Phocian) μυχλός (mukhlós, “… The correct English form is mule, spelled M-U-L-E.

Definition

  1. 1
    The generally sterile male or female hybrid offspring of a male donkey and a female horse.
  2. 2
    The generally sterile hybrid offspring of any two species of animals.
  3. 3
    A hybrid plant.
  4. 4
    A stubborn person.
  5. 5
    A person paid to smuggle drugs.
  6. 6
    A coin or medal minted with obverse and reverse designs not normally seen on the same piece, either intentionally or in error.
  7. 7
    A MMORPG character, or NPC companion in a tabletop RPG, used mainly to store extra inventory for the owner's primary character.
  8. 8
    Any of a group of cocktails involving ginger ale or ginger beer, citrus juice, and various liquors.
  9. 9
    A kind of triangular sail for a yacht.
  10. 10
    A kind of cotton-spinning machine.

Recorded use

Wiktionary examples

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

  1. One day he ran into a herd of a half dozen elk, so he rode his mule down the canyon three or four miles, leaving the sheep alone.
  2. It would be exceedingly interesting to know if the hybrid would reproduce, a matter I deem exceedingly doubtful, for the chances are it would prove a "mule" (infertile).

Etymology

From Middle English mule, from Anglo-Norman mule and Old English mūl, both from Latin mūlus, from Proto-Indo-European *mukslós. Compare Late Latin muscellus (“young he-mule”), Old East Slavic мъшкъ (mŭškŭ, “mule”), Ancient Greek (Phocian) μυχλός (mukhlós, “he-ass”), and German Maul Maultier, Maulesel (through Latin).

Synonyms

Missouri canary

This word in other languages

Common misspellings

Also misspelled as:

  • mlue
  • mmule
  • muel
  • mulle
  • umle

Misspelling Pattern Breakdown

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

mlue2mmule1muel2mulle1umle2
Edit distance from "mule"

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 "mule"?
"mule" is spelled M-U-L-E. The IPA pronunciation is /mjuːl/.
What does "mule" mean?
As a noun, "mule" means: The generally sterile male or female hybrid offspring of a male donkey and a female horse.
What words are commonly confused with "mule"?
"mule" is commonly confused with "mum", "mun", "must". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "mule"?
The IPA (International Phonetic Alphabet) transcription for "mule" is /mjuːl/. 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 "mule"?
From Middle English mule, from Anglo-Norman mule and Old English mūl, both from Latin mūlus, from Proto-Indo-European *mukslós. Compare Late Latin muscellus (“young he-mule”), Old East Slavic мъшкъ (mŭškŭ, “mule”), Ancient Greek (Phocian) μυχλός (... 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 "mule", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 4 letters (nearest by frequency rank).

Similar misspelling depth

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

What to do next

You've looked up "mule". Here's where to go from here.

  • "mule" maps to 20 confusable pairs in this vintage; the highest-scored is "mum". View pair
  • 5 edit-distance misspelling variants are generated for spell-check research on this headword. See variants
  • Usage frequency rank #16,279 among English headwords in this corpus. Corpus statistics
  • Browse more English words in the "M" letter cohort. M–Z browse
  • PlainSpell rotates a curated Word of the Day from the English corpus, a passive way to discover vocabulary. Word of the Day

PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.

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