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martin-luther-king-jr-day

Definition, pronunciation, etymology, and usage for the English word. Free spelling reference powered by Wiktionary.

Detailed reference entry for the English word "martin-luther-king-jr-day", 25-letters, with pronunciation in International Phonetic Alphabet notation, etymology traced through Germanic and Romance roots where applicable, common misspelling variants catalogued from Wiktionary, and usage frequency ranked against an open word-frequency list covering the top 100,000 English words. PlainSpell covers English, Spanish, Portuguese, French, and German spelling with confusable-pair detection that highlights visually and phonetically similar words. This entry for "martin-luther-king-jr-day" includes synonyms, antonyms, homophones, and cross-language translation pointers sourced from Wiktionary via the kaikki.org extract. Whether you are verifying the correct spelling of "martin-luther-king-jr-day" for academic writing, checking homophone confusion, or exploring etymological origins, this page provides a citation-backed, free reference that requires no sign-up.

The verdict

“Martin Luther King Jr. Day” is outside the top-ranked English vocabulary, used as a proper noun - the kind of word writers most often double-check.

Unranked
below top-frequency English
26
letters

Dominant Wiktionary sense: A public holiday in the USA celebrated on the third Monday of January, during which the Civil Rights Movement, especially leader Martin Luther King Jr., is celebrated or remembered.

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Key facts for Martin Luther King Jr. Day
PropertyValue
HeadwordMartin Luther King Jr. Day
LanguageEnglish
Part of speechProper noun
Letters26
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “Martin Luther King Jr. Day” sits in English frequency

Martin Luther King Jr. Day falls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for Martin Luther King Jr. Day is 26 letters long, classified as a proper noun. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. The dominant gloss from Wiktionary reads: "A public holiday in the USA celebrated on the third Monday of January, during which the Civil Rights Movement, especially leader Martin Luther King Jr., is celebrated or remembered.".

No misspelling variants are generated for Martin Luther King Jr. Day in our index, suggesting the orthography follows predictable English patterns. It is not paired with a close-neighbour confusable in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.

No explicit etymology string is stored for this entry, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. For readers arriving here from a spelling check, the authoritative guidance is: the correct English form is Martin Luther King Jr. Day, spelled M-A-R-T-I-N- -L-U-T-H-E-R- -K-I-N-G- -J-R-.- -D-A-Y, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.

Definition

  1. 1
    A public holiday in the USA celebrated on the third Monday of January, during which the Civil Rights Movement, especially leader Martin Luther King Jr., is celebrated or remembered.

Synonyms

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Cite this page

Free to reuse with attribution (CC BY-SA). Copy the citation:

PlainSpell, “Martin Luther King Jr. Day, English word data” (May 6, 2026). Derived from Wiktionary (kaikki.org, CC BY-SA) and an open word-frequency list. https://plainspell.com/en/word/martin-luther-king-jr-day

Frequently Asked Questions

How do you spell "Martin Luther King Jr. Day"?
"Martin Luther King Jr. Day" is spelled M-A-R-T-I-N- -L-U-T-H-E-R- -K-I-N-G- -J-R-.- -D-A-Y.
What does "Martin Luther King Jr. Day" mean?
As a proper noun, "Martin Luther King Jr. Day" means: A public holiday in the USA celebrated on the third Monday of January, during which the Civil Rights Movement, especially leader Martin Luther King Jr., is celebrated or remembered.
What language does "Martin Luther King Jr. Day" come from?
"Martin Luther King Jr. Day" is a English word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
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 “Martin Luther King Jr. Day”

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

  • The one correct English spelling is M-A-R-T-I-N- -L-U-T-H-E-R- -K-I-N-G- -J-R-.- -D-A-Y - every other letter order is a misspelling in standard orthography.
  • Browse more English words and confusable pairs in the same reference. English words

Nearby English words

Other entries that begin with the letter M in our English index:

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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