- a book containing the official record of trips made by a ship or aircraft; log
- Brit (formerly) a document listing the registration, manufacture, ownership and previous owners, etc, of a motor vehicle
Compare registration document
WordReference Random House Unabridged Dictionary of American English © 2026
log•book
(lôg′bŏŏk′, log′-),USA pronunciation n.
- Aeronautics, Nautical, Naval Termsa book in which details of a trip made by a ship or aircraft are recorded;
log.
- log1 (def. 3) + book 1670–80
Collins Concise English Dictionary © HarperCollins Publishers::
logbook /ˈlɒɡˌbʊk/ n