smug

/smʌɡ/

//smʌɡ// adj

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

The verdict

“smug” is a moderately-common English word, ranked #19,467 in English word frequency and used as an adjective.

#19,467
frequency rank, English
4
letters
6
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - irritatingly pleased with oneself; offensively self-complacent, self-satisfied.

Visual similarity to commonly confused words

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

smug vs su
50% similar
smug vs sun
50% similar
smug vs sub
50% similar

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

Key facts for smug
PropertyValue
Headwordsmug
LanguageEnglish
Part of speechAdjective
IPA/smʌɡ/
Letters4
Frequency rank#19,467
Misspellings tracked6
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “smug” 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). smug 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 smug is 4 letters long, classified as an adjective, and transcribed in the International Phonetic Alphabet as /smʌɡ/. Corpus data places it at rank #19,467 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 6 likely wrong-spelling variants for smug, with forms such as "msug", "smgu", and "smmug". 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, "su", "sun", "sub", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: Originally "spruce, neat," from Low German smuk (“pretty”), from Middle Low German smuk (“lithe, delicate, neat, trim”), although the g of the English word is not easily explained. The ultimate source should be Proto-West Germanic *smeugan (“to crawl, creep… The correct English form is smug, spelled S-M-U-G.

Definition

  1. 1
    irritatingly pleased with oneself; offensively self-complacent, self-satisfied.
  2. 2
    Showing smugness; showing self-complacency, self-satisfaction.
  3. 3
    Studiously neat or nice, especially in dress; spruce; affectedly precise; smooth and prim.

Etymology

Originally "spruce, neat," from Low German smuk (“pretty”), from Middle Low German smuk (“lithe, delicate, neat, trim”), although the g of the English word is not easily explained. The ultimate source should be Proto-West Germanic *smeugan (“to crawl, creep”). From the Low German derived also North Frisian smok, Danish smuk and Swedish smukk (now obsolete or dialectal). Compare also Middle High German gesmuc (“ornament”) and smücken (“to dress, to adorn”), both ultimately from smiegen (“to press to, insert, wrap, to nestle”), hence German schmiegen, Schmuck and schmücken. The adjective schmuck, however, was borrowed from Low German. See smock for more.

This word in other languages

Common misspellings

Also misspelled as: msug,smgu,smmug,smugg,ssmug,sumg

Misspelling Pattern Breakdown

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

msug2smgu2smmug1smugg1ssmug1sumg2
Edit distance from "smug"

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 "smug"?
"smug" is spelled S-M-U-G. The IPA pronunciation is /smʌɡ/.
What does "smug" mean?
As an adjective, "smug" means: irritatingly pleased with oneself; offensively self-complacent, self-satisfied.
What words are commonly confused with "smug"?
"smug" is commonly confused with "su", "sun", "sub". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "smug"?
The IPA (International Phonetic Alphabet) transcription for "smug" is /smʌɡ/. 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 "smug"?
Originally "spruce, neat," from Low German smuk (“pretty”), from Middle Low German smuk (“lithe, delicate, neat, trim”), although the g of the English word is not easily explained. The ultimate source should be Proto-West Germanic *smeugan (“to cr... 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 “smug”

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

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