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 September 3, 2026) - Any of several books or documents of a political character, published at different times and for different purposes.
Corpus desk
Index EN-black-book · Black Book · English
Black Book · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-MEGA 10 letters
- VOW-3 3 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-THIN "B" thin
- PHOTO-UNK Peer pending
Read with this headword: Spelling guide for this pattern
Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.
| Property | Value |
|---|---|
| Headword | Black Book |
| Language | English |
| Part of speech | Noun |
| Letters | 10 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “Black Book” in English
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.
Recorded use
Wiktionary examplesThese source excerpts show how Black Book appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
the Black Book of Communism
the Black Book of Polish censorship
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.