Black Book
"black-book" is a 9-letter English headword indexed on PlainSpell.
The verdict
“Black Book” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 10
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Any of several books or documents of a political character, published at different times and for different purposes.
| Property | Value |
|---|---|
| Headword | Black Book |
| Language | English |
| Part of speech | Noun |
| Letters | 10 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “Black Book” sits in English frequency
Rare enough to double-check
Black Book is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. 8 senses are on record.
Black Book doesn't appear in our generated misspelling index, and the word's spelling is regular enough that our generator found nothing worth flagging. Our confusable-pair dataset has no match for it, since no other headword is close enough in sound or shape to pair with it.
Etymologically, the entry records: Either from the colour of the binding, or from the character of the contents. The correct English form is Black Book, spelled B-L-A-C-K- -B-O-O-K.
Definition
- 1Any of several books or documents of a political character, published at different times and for different purposes.
- 2Any of several books or documents of a political character, published at different times and for different purposes.
- 3Any of several books or documents of a political character, published at different times and for different purposes.
- 4Any of several books or documents of a political character, published at different times and for different purposes.
- 5Any of several books or documents of a political character, published at different times and for different purposes.
- 6Any of several books or documents of a political character, published at different times and for different purposes.
- 7A book critiquing or denouncing something.
- 8Any book dealing with necromancy.
Etymology
Either from the colour of the binding, or from the character of the contents.
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
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Using “Black Book”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is B-L-A-C-K- -B-O-O-K - 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.