blackjack
/ˈblækd͡ʒæk/
"blackjack" is a 9-letter English headword indexed on PlainSpell.
The verdict
“blackjack” is a moderately-common English word, ranked #23,475 in English word frequency and used as a noun.
- #23,475
- frequency rank, English
- 9
- letters
- 15
- tracked misspellings
- 2
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A common gambling card game in casinos, where the object is to get as close to 21 without going over.
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | blackjack |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈblækd͡ʒæk/ |
| Letters | 9 |
| Frequency rank | #23,475 |
| Misspellings tracked | 15 |
| Confusable pairs | 2 |
| Source | Wiktionary (kaikki.org) |
Where “blackjack” sits in English frequency
Spelling & Dictionary Insight
The English entry for blackjack is 9 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈblækd͡ʒæk/. Corpus data places it at rank #23,475 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 11 distinct senses for this headword, so context determines which meaning a reader should apply.
Our generated misspelling index lists 15 likely wrong-spelling variants for blackjack, with forms such as "balckjack", "bblackjack", and "blacckjack". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 2 confusable-pair relationships, "backpack", "blackface", where similar look or sound leads writers to substitute one word for another in context.
Etymologically, the entry records: From black + jack. The correct English form is blackjack, spelled B-L-A-C-K-J-A-C-K.
Definition
- 1A common gambling card game in casinos, where the object is to get as close to 21 without going over.
- 2A hand in the game of blackjack consisting of a face card and an ace.
- 3A variant of switch where each player is initially dealt the same number of cards, usually seven, and when one player plays a black jack the player whose turn comes next has to pick up that many cards, unless they play a red jack (as this normally cancels a black jack).
- 4A variant of hearts where the Jack of Spades is the penalty card.
- 5The flag (i.e., a jack) traditionally flown by pirate ships; popularly thought to be a white skull and crossed bones on a black field (the Jolly Roger).
- 6A small, flat, blunt, usually leather-covered weapon loaded with heavy material such as lead or ball bearings, intended to inflict a blow to the head that renders the victim unconscious with diminished risk of lasting cranial trauma.
- 7A tool of leather filled with shot (or similar), resembling the weapon, used for shaping sheet metal.
- 8Any of several species of weed of genus Bidens, such as Bidens pilosa, in the family Compositae.
- 9Ellipsis of blackjack oak.
- 10Any of a series of hard, dark soils, often considered low quality, but suitable for growing certain crops such as cotton.
- 11Ammonium bituminosulfonate.
Etymology
From black + jack.
This word in other languages
Common misspellings
Also misspelled as: balckjack,bblackjack,blacckjack,blacjkack,blackajck,blackjacck,blackjackk,blackjakc,blackjcak,blackjjack,blackkjack,blakcjack,blcakjack,bllackjack,lbackjack
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of blackjack - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.
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 "blackjack"?
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Using “blackjack”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is B-L-A-C-K-J-A-C-K - every other letter order is a misspelling in standard orthography.
- Say it as /ˈblækd͡ʒæk/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “backpack” - see the side-by-side comparison. blackjack vs backpack
- 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.