dux

/dʌks/

//dʌks// noun

"dux" is a 3-letter English headword indexed on PlainSpell.

The verdict

“dux” is an uncommon English word, ranked #65,079 in English word frequency and used as a noun.

#65,079
frequency rank, English
3
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The top (male or female) academic student in a school, or in a year of school; the top student in a specified academic discipline.

Key facts for dux
PropertyValue
Headworddux
LanguageEnglish
Part of speechNoun
IPA/dʌks/
Letters3
Frequency rank#65,079
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “dux” 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). dux 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 dux is 3 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /dʌks/. Corpus data places it at rank #65,079 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.

The misspelling generator found no plausible variants for dux, a sign its spelling follows regular English conventions. It is not paired with a close-neighbour confusable in our dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: Borrowed from Latin dux (“leader”). Doublet of doge, duc, duce, and duke. The correct English form is dux, spelled D-U-X.

Definition

  1. 1
    The top (male or female) academic student in a school, or in a year of school; the top student in a specified academic discipline.
  2. 2
    A high-ranking commander in the Roman army, responsible for more than one legion.
  3. 3
    The subject of a fugue, answered by the comes.

Etymology

Borrowed from Latin dux (“leader”). Doublet of doge, duc, duce, and duke.

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 "dux"?
"dux" is spelled D-U-X. The IPA pronunciation is /dʌks/.
What does "dux" mean?
As a noun, "dux" means: The top (male or female) academic student in a school, or in a year of school; the top student in a specified academic discipline.
How do you pronounce "dux"?
The IPA (International Phonetic Alphabet) transcription for "dux" is /dʌks/. 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 "dux"?
Borrowed from Latin dux (“leader”). Doublet of doge, duc, duce, and duke. 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 “dux”

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

  • The one correct English spelling is D-U-X - every other letter order is a misspelling in standard orthography.
  • Say it as /dʌks/ (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