daybook

/ˈdeɪˌbʊk/

//ˈdeɪˌbʊk// noun

"daybook" is a 7-letter English headword indexed on PlainSpell.

The verdict

“daybook” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
7
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A daily chronicle; a diary.

Corpus desk

Index EN-daybook · daybook · English

daybook · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 7 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "D" 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.

Key facts for daybook
PropertyValue
Headworddaybook
LanguageEnglish
Part of speechNoun
IPA/ˈdeɪˌbʊk/
Letters7
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “daybook” in English

daybooksits beyond the 100,000 most-frequent English words, in the long tail of technical, archaic, or otherwise rare vocabulary where spelling doubt tends to strike hardest.

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

Rare enough to double-check

daybook is uncommon English outside the top frequency list, classed as anoun, transcribed /ˈdeɪˌbʊk/. Rarity is why readers land here mid-draft. 3 senses are on record.

The misspelling generator found no plausible variants for daybook, typically a sign the spelling maps closely to how the word sounds. Our confusable-pair dataset has no match for it, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: From day + book. Cognate with Dutch dagboek (“diary, journal, logbook”), German Tagebuch (“diary, journal, daybook”), Danish dagbog (“diary”), Swedish dagbok (“diary, logbook, journal, daybook”). The correct English form is daybook, spelled D-A-Y-B-O-O-K.

Definition

  1. 1
    A daily chronicle; a diary.
  2. 2
    An accounting journal.
  3. 3
    A logbook.

Recorded use

Wiktionary examples

These source excerpts show how daybook appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. It was a working document, a sort of lab notebook, and since I have called it a daybook, it has become the most valuable resource I have It takes me about six weeks to fill a daybook, and when I'm finished with one I go back through it and pick out anything that I need to work on in the next book.
  2. I try to get up thirty minutes before anyone else in my house in order to have my daybook writing time.

Etymology

From day + book. Cognate with Dutch dagboek (“diary, journal, logbook”), German Tagebuch (“diary, journal, daybook”), Danish dagbog (“diary”), Swedish dagbok (“diary, logbook, journal, daybook”).

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.

Frequently Asked Questions

How do you spell "daybook"?
"daybook" is spelled D-A-Y-B-O-O-K. The IPA pronunciation is /ˈdeɪˌbʊk/.
What does "daybook" mean?
As a noun, "daybook" means: A daily chronicle; a diary.
How do you pronounce "daybook"?
The IPA (International Phonetic Alphabet) transcription for "daybook" is /ˈdeɪˌbʊk/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "daybook"?
From day + book. Cognate with Dutch dagboek (“diary, journal, logbook”), German Tagebuch (“diary, journal, daybook”), Danish dagbog (“diary”), Swedish dagbok (“diary, logbook, journal, daybook”). 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.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list