from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A book in which daily transactions are recorded.
  • noun A diary.

from The Century Dictionary.

  • noun A diary or chronicle.
  • noun Nautical, a log-book.
  • noun In bookkeeping, a book in which the transactions of the day are entered in the order of their occurrence; a book of original entries, or first record of sales and purchases, receipts, disbursements, etc.

from the GNU version of the Collaborative International Dictionary of English.

  • noun A journal of accounts; a primary record book in which are recorded the debts and credits, or accounts of the day, in their order, and from which they are transferred to the journal.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A daily chronicle; a diary.
  • noun A ledger; an accounting journal.
  • noun nautical A logbook.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun the daily written record of events (as arrests) in a police station
  • noun an accounting journal as a physical object
  • noun a ledger in which transactions have been recorded as they occurred


from Wiktionary, Creative Commons Attribution/Share-Alike License

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


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