moron

/ˈmɔːɹɒn/

//ˈmɔːɹɒn// noun

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

The verdict

“moron” is a moderately-common English word, ranked #10,405 in English word frequency and used as a noun.

#10,405
frequency rank, English
5
letters
7
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A stupid person; an idiot; a fool.

Visual similarity to commonly confused words

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

moron vs moto
60% similar
moron vs mort
60% similar
moron vs motor
60% similar

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

Key facts for moron
PropertyValue
Headwordmoron
LanguageEnglish
Part of speechNoun
IPA/ˈmɔːɹɒn/
Letters5
Frequency rank#10,405
Misspellings tracked7
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “moron” 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). moron 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 moron is 5 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈmɔːɹɒn/. Corpus data places it at rank #10,405 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 3 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 7 likely wrong-spelling variants for moron, with forms such as "mmoron", "moorn", and "morno". 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, "moto", "mort", "motor", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: Coined by American psychologist Henry H. Goddard in 1910, from Ancient Greek μωρόν (mōrón), the neuter form of μωρός (mōrós, “foolish, dull”). Coined in the third sense by philosopher Ronald Dworkin. The correct English form is moron, spelled M-O-R-O-N.

Definition

  1. 1
    A stupid person; an idiot; a fool.
  2. 2
    A person of mild mental subnormality in the former classification of mental retardation, having an intelligence quotient of 50–70.
  3. 3
    A hypothetical particle whose existence and configuration can make a moral judgment true.

Etymology

Coined by American psychologist Henry H. Goddard in 1910, from Ancient Greek μωρόν (mōrón), the neuter form of μωρός (mōrós, “foolish, dull”). Coined in the third sense by philosopher Ronald Dworkin.

This word in other languages

Common misspellings

Also misspelled as: mmoron,moorn,morno,moronn,morron,mroon,omron

Misspelling Pattern Breakdown

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

mmoron1moorn2morno2moronn1morron1mroon2omron2
Edit distance from "moron"

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 "moron"?
"moron" is spelled M-O-R-O-N. The IPA pronunciation is /ˈmɔːɹɒn/.
What does "moron" mean?
As a noun, "moron" means: A stupid person; an idiot; a fool.
What words are commonly confused with "moron"?
"moron" is commonly confused with "moto", "mort", "motor". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "moron"?
The IPA (International Phonetic Alphabet) transcription for "moron" is /ˈmɔːɹɒn/. 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 "moron"?
Coined by American psychologist Henry H. Goddard in 1910, from Ancient Greek μωρόν (mōrón), the neuter form of μωρός (mōrós, “foolish, dull”). Coined in the third sense by philosopher Ronald Dworkin. 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 “moron”

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

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