dinner jacket

noun

"dinner-jacket" is a 12-letter English headword indexed on PlainSpell.

The verdict

“dinner jacket” is outside the top-ranked English vocabulary, used as a noun - the kind of word writers most often double-check.

Unranked
below top-frequency English
13
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A jacket, often white, corresponding to a tuxedo jacket.

Key facts for dinner jacket
PropertyValue
Headworddinner jacket
LanguageEnglish
Part of speechNoun
Letters13
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “dinner jacket” sits in English frequency

dinner jacket 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 dinner jacket is 13 letters long, classified as a noun. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.

Zero misspellings are on record for dinner jacket in our index, typically a sign the spelling maps closely to how the word sounds. This entry stands alone in our confusable dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: So called because it is worn by men to formal dinners. The correct English form is dinner jacket, spelled D-I-N-N-E-R- -J-A-C-K-E-T.

Definition

  1. 1
    A jacket, often white, corresponding to a tuxedo jacket.
  2. 2
    The formal suit, typically black, that includes this type of jacket.

Etymology

So called because it is worn by men to formal dinners.

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.

Frequently Asked Questions

How do you spell "dinner jacket"?
"dinner jacket" is spelled D-I-N-N-E-R- -J-A-C-K-E-T.
What does "dinner jacket" mean?
As a noun, "dinner jacket" means: A jacket, often white, corresponding to a tuxedo jacket.
What is the origin of the word "dinner jacket"?
So called because it is worn by men to formal dinners. 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 “dinner jacket”

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

  • The one correct English spelling is D-I-N-N-E-R- -J-A-C-K-E-T - every other letter order is a misspelling in standard orthography.
  • 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