book on

verb

To register (for duty).

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Meanings

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

present singular third person books on · participle present booking on · participle past booked on · past booked on

  1. intransitiveTo 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
Cite this entry
APA

book on. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/book%20on

MLA

“book on.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/book%20on. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “book on,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/book%20on.

Source: book on on Wiktionary, CC BY-SA 4.0.