Word.ws English Dictionary

book on

book on verb: to register (for duty).

Verb

book on (third-person singular simple present books on, present participle booking on, simple past and past participle booked on)

  1. (intransitive) To register (for duty).
    • Having woken at 0900 the previous morning, he had not slept during the day and had already been awake for 11 hours when he booked on.2023 August 23, “Network News: RAIB cites driver fatigue as factor in 28mph collision”, in RAIL, number 990, page 12

Forms of book on

third-person singular presentbooks on
present participlebooking on
past participlebooked on
pastbooked on

Questions about book on

What does book on mean?
Book on means to register (for duty).
What part of speech is book on?
Book on is a verb.
What is the past tense of book on?
The past tense of book on is booked on.

Words near book on in the dictionary

  1. Book of the Dead
  2. book of the film
  3. Book of the Living
  4. book of words
  5. book off
  6. book on
  7. book packet
  8. Book Pahlavi
  9. book piles
  10. book pocket
  11. book pockets

Source and license

Adapted from Wiktionary: book on (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “book on.” Word.ws, https://word.ws/book_on. Based on Wiktionary, CC BY-SA 4.0.